Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 5 Lesson 8 Use Mental Math to Subtract 10s or 100s to a Number will engage students and is a great way of informal assessment.
McGraw-Hill Math Grade 2 Answer Key Chapter 5 Lesson 8 Use Mental Math to Subtract 10s or 100s to a Number
Subtract
Use mental math to subtract. Write the difference.
Question 1.
426 – 10 = ___________
Answer:
416
Explanation:
Use mental math to subtract
Subtract only tens
20 – 10 = 10
So, 426 – 10 = 416.
Question 2.
257 – 30 = ___________
Answer:
227
Explanation:
Use mental math to subtract
Subtract only tens
50 – 30 = 20
So, 257 – 30 = 227.
Question 3.
Answer:
Explanation:
The difference of 569 and 400 is 169.
Question 4.
Answer:
Explanation:
The difference of 803 and 600 is 203.