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## Texas Go Math Grade 2 Lesson 13.3 Answer Key 100 More, 100 Less

**Explore**

Write the numbers. Draw quick pictures for the numbers.

FOR THE TEACHER • In the first box, have children write the number 213 and then draw a quick picture for 213. In the second box, have them write the number that is 10 more than 213 and draw a quick picture. In the third box, repeat for the number that is 10 less than 213.

**Math Talk**

**Mathematical Processes**

Describe how your three quick pictures are different.

Answer:

**Model and Draw**

Use what you know about place value to find 100 more or 100 less than a number.

100 more than 823

8 hundreds 2 tens 3 ones

9 hundreds 2 tens 3 ones = ____________

Answer:

9 hundreds 2 tens 3 ones = 923.

Explanation:

Given the 100 more than 823, so we will add 100 to the given number 823 which is 823 + 100 = 923.

100 less than 823

8 hundreds 2 tens 3 ones

7 hundreds 2 tens 3 ones = ____________

Answer:

7 hundreds 2 tens 3 ones = 723.

Explanation:

Given the 100 less than 823, so we will subtract 100 to the given number 823 which is 823 – 100 = 723.

100 more than 957

9 hundreds 5 tens 7 ones

1 thousand 0 hundreds 5 tens 7 ones = ____________

Answer:

1 thousand 0 hundreds 5 tens 7 ones = 1,057.

Explanation:

Given the 100 more than 957, so we will add 100 to the given number 957 which is 957 + 100 = 1,057.

**Share and Show**

**Write the number.**

Question 1.

100 more than 364

Answer:

4 hundreds 6 tens 4 ones = 464.

Explanation:

Given the 100 more than 364, so we will add 100 to the given number 364 which is 364 + 100 = 464.

3 hundreds 6 tens 4 ones

4 hundreds 6 tens 4 ones

Question 2.

100 less than 990

Answer:

8 hundreds 9 tens 0 ones = 890.

Explanation:

Given the 100 less than 990, so we will subtract 100 to the given number 990 which is 990 – 100 = 890.

9 hundreds 9 tens 0 ones

8 hundreds 9 tens 0 ones

Question 3.

100 less than 1,003

Answer:

9 hundreds 0 tens 3 ones = 903.

Explanation:

Given the 100 less than 1,003, so we will subtract 100 to the given number 1,003 which is 1,003 – 100 = 903.

1 thousand 9 hundreds 0 tens 3 ones

9 hundreds 0 tens 3 ones

Question 4.

100 more than 117

Answer:

2 hundreds 1 tens 7 ones = 217.

Explanation:

Given the 100 more than 117, so we will add 100 to the given number 117 which is 117 + 100 = 217.

1 hundreds 1 tens 7 ones

2 hundreds 1 tens 7 ones

**Problem Solving**

**Write the number.**

Question 5.

100 more than 525

Answer:

6 hundreds 2 tens 5 ones = 625.

Explanation:

Given the 100 more than 525, so we will add 100 to the given number 525 which is 525 + 100 = 625.

5 hundreds 2 tens 5 ones

6 hundreds 2 tens 5 ones

Question 6.

100 less than 191

Answer:

0 hundreds 9 tens 1 ones = 91.

Explanation:

Given the 100 less than 191, so we will subtract 100 to the given number 191 which is 191 – 100 = 91.

1 hundreds 9 tens 1 ones

0 hundreds 9 tens 1 ones

Question 7.

100 less than 688

Answer:

5 hundreds 8 tens 8 ones = 588.

Explanation:

Given the 100 less than 688, so we will subtract 100 to the given number 688 which is 688 – 100 = 588.

6 hundreds 8 tens 8 ones

6 hundreds 8 tens 8 ones

Question 8.

100 more than 432

Answer:

5 hundreds 3 tens 2 ones = 532.

Explanation:

Given the 100 more than 432, so we will add 100 to the given number 432 which is 432 + 100 = 532.

4 hundreds 3 tens 2 ones

5 hundreds 3 tens 2 ones

Question 9.

100 more than 274

Answer:

3 hundreds 7 tens 4 ones = 374.

Explanation:

Given the 100 more than 274, so we will add 100 to the given number 274 which is 274 + 100 = 374.

2 hundreds 7 tens 4 ones

3 hundreds 7 tens 4 ones

Question 10.

100 less than 1,200

Answer:

1 thousand 1 hundreds 0 tens 0 ones= 1,100.

Explanation:

Given the 100 less than 1,200, so we will subtract 100 to the given number 1,200 which is 1,200 – 100 = 1,100.

1 thousand 2 hundreds 0 tens 0 ones

1 thousand 1 hundreds 0 tens 0 ones

**Solve. Write or draw to show your work.**

Question 11.

**H.O.T. Multi-Step** Mark read 203 pages. Laney read 100 more pages than Mark. Gavin read 10 fewer pages than Laney. How many pages did Gavin read?

Answer:

Gavin reads 313 pages.

Explanation:

Given that Mark read 203 pages. Laney read 100 more pages than Mark, so the number of pages did Laney read is 203 + 100 which is 303. Gavin read 10 fewer pages than Laney which is 303 + 10 which is 313 pages.

Question 12.

**H.O.T.** Rex models a number with 3 hundreds blocks and 16 tens blocks. What number is 100 more than the number he modeled?

Answer:

The number is 560.

Explanation:

Given that Rex models a number with 3 hundreds blocks and 16 tens blocks which is 3 × 100 = 300 and 16 × 10 = 160. So the total number of blocks did Rex models is 300 + 160 = 460 blocks. So the number which is 100 more than the number he modeled 460 + 100 which is 560.

**Daily Assessment Task**

**Choose the correct answer.**

Question 13.

Connect Tina writes the number 242. James writes the number that is 100 less. What number did James write?

(A) 142

(B) 322

(C) 232

Answer:

A.

Explanation:

Given that Tina writes the number 242 and James writes the number that is 100 less, so the number did James write is 242 – 100 which is 142.

Question 14.

Greg’s puzzle has 596 pieces. He placed 100 pieces. How many pieces of the puzzle are not placed yet?

(A) 696

(B) 96

(C) 496

Answer:

C.

Explanation:

Given that Greg’s puzzle has 596 pieces and he placed 100 pieces, so the number of pieces of the puzzle are not placed yet is 596 – 100 which is 496 pieces.

Question 15.

Analyze There are 360 animal cards in the play area. The teacher puts 100 more animal cards in the play area. How many animal cards are there now?

(A) 370

(B) 460

(C) 260

Answer:

B.

Explanation:

Given that there are 360 animal cards in the play area and the teacher puts 100 more animal cards in the play area. So the number of animal cards are there now is 360 + 100 which is 460 animal cards.

Question 16.

**TEXAS Test Prep** There are 293 paper clips in a box. There are 100 fewer paper dips in the desk. How many paper clips are in the desk?

(A) 283

(B) 393

(C) 193

Answer:

C.

Explanation:

Given that there are 293 paper clips in a box and there are 100 fewer paper dips in the desk. So the number of paper clips are in the desk is 293 – 100 which is 193 paper clips.

**TAKE HOME ACTIVITY** • Name a 3 digit number Have your child say the number that is 100 less than your number.

Answer:

The number is 110.

Explanation:

Let the 3 digit number be 210 and the number that is 100 less than the number is 210 – 100 which is 110.

### Texas Go Math Grade 2 Lesson 13.3 Homework and Practice Answer Key

**Write the number.**

Question 1.

100 more than 284

Answer:

3 hundreds 8 tens 4 ones = 384.

Explanation:

Given the 100 more than 284, so we will add 100 to the given number 284 which is 284 + 100 = 384.

2 hundreds 8 tens 4 ones

3 hundreds 8 tens 4 ones

Question 2.

100 less than 730

Answer:

6 hundreds 3 tens 0 ones = 630.

Explanation:

Given the 100 less than 730, so we will subtract 100 to the given number 730 which is 730 – 100 = 630.

7 hundreds 3 tens 0 ones

6 hundreds 3 tens 0 ones

Question 3.

100 less than 586

Answer:

4 hundreds 8 tens 6 ones = 486.

Explanation:

Given the 100 less than 586, so we will subtract 100 to the given number 586 which is 586 – 100 = 486.

5 hundreds 8 tens 6 ones

4 hundreds 8 tens 6 ones

Question 4.

100 more than 687

Answer:

7 hundreds 8 tens 7 ones = 384.

Explanation:

Given the 100 more than 687, so we will add 100 to the given number 687 which is 687 + 100 = 787.

6 hundreds 8 tens 7 ones

7 hundreds 8 tens 7 ones

Question 5.

100 less than 1,180

Answer:

1 thousand 7 hundreds 8 tens 0 ones = 1,786.

Explanation:

Given the 100 less than 1,180, so we will subtract 100 to the given number 1,180 which is 1,180 – 100 = 1,780.

1 thousand 8 hundreds 8 tens 0 ones

1 thousand 7 hundreds 8 tens 0 ones

Question 6.

100 more than 337

Answer:

4 hundreds 3 tens 7 ones = 437.

Explanation:

Given the 100 more than 337, so we will add 100 to the given number 437 which is 337 + 100 = 437.

3 hundreds 3 tens 7 ones

4 hundreds 3 tens 7 ones

**Problem Solving**

**Solve. Write or draw to show your work.**

Question 7.

Kelly models a number with 2 hundreds blocks and 18 tens blocks. What number is 100 more than the number she modeled?

Answer:

The number of blocks she modeled is 480 blocks.

Explanation:

Given that Kelly models a number with 2 hundreds blocks and 18 tens blocks which is 2 × 100 = 200 and 18 × 10 = 180. So the total number of blocks did Rex models is 200 + 180 = 380 blocks. So the number which is 100 more than the number he modeled 380 + 100 which is 480.

Question 8.

**Multi-Step** Adam read 175 pages. Doris read 100 more pages than Adam. Jerry read 10 fewer pages than Doris. How many pages did Jerry read?

Answer:

Jerry reads 265 pages.

Explanation:

Given that Adam read 175 pages and Doris read 100 more pages than Adam, so the number of pages did Doris read is 175 + 100 which is 275 pages. Jerry read 10 fewer pages than Doris, so Jerry reads 275 – 10 which is 265 pages.

**Lesson Check**

**Choose the correct answer.**

Question 9.

There are 329 trading cards in a large box. There are 100 fewer trading cards on a table. How many trading cards are on the table?

(A) 319

(B) 339

(C) 229

Answer:

C.

Explanation:

Given that there are 329 trading cards in a large box and there are 100 fewer trading cards on a table. So the number of trading cards are on the table are 329 – 100 which is 229

Question 10.

Lauren’s class has 250 picture books in the reading center. Her teacher puts 100 more picture books in the reading center. How many picture books are there now?

(A) 350

(B) 150

(C) 260

Answer:

A.

Explanation:

Given that Lauren’s class has 250 picture books in the reading center and her teacher puts 100 more picture books in the reading center. So the number of picture books are there now is 250 + 100 which is 350 books.

Question 11.

Zach places 112 playing cards face up on the floor. Then the wind blew the door open. 100 cards blew away. How many playing cards are on the floor now?

(A) 102

(B) 12

(C) 212

Answer:

B.

Explanation:

Given that Zach placed 112 playing cards face up on the floor and then the wind blew the door open and 100 cards blew away. So the number of playing cards are on the floor now is 112 – 100 which is 12.

Question 12.

Megan’s puzzle has 1,000 pieces. She uses 100 pieces. How many pieces of the puzzle are not used yet?

(A) 900

(B) 1,100

(C) 990

Answer:

A.

Explanation:

Given that Megan’s puzzle has 1,000 pieces and she uses 100 pieces. So the number of pieces of the puzzle are not used yet is 1000 – 100 which is 900.