McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key Use Mental Math to Add 10s or 100s to a Number

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Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 5 Lesson 7 Use Mental Math to Add 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 7 Use Mental Math to Add 10s or 100s to a Number

Use mental math to add. Write the sum.

Question 1.
527 + 10 = 537

Question 2.
366 + 30 = ___
Answer:
396

Explanation:
Use mental math to add
Add only tens
60 + 30 = 90
So, 366 + 30 = 396

Question 3.
568 + 400 = _____
Answer:
968

Explanation:
Use mental math to add
Add only hundreds
500 + 400 = 900
So, 568 + 400 = 968.

Question 4.
263 + 200 = ___
Answer:
463

Explanation:
Use mental math to add
Add only hundreds
200 + 200 = 400
So, 263 + 200 = 463.

Question 5.
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key Use Mental Math to Add 10s or 100s to a Number 1
Answer:
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key img 1

Explanation:
The sum of 100 and 690 is 790.

Question 6.
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key Use Mental Math to Add 10s or 100s to a Number 2
Answer:
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key img 2

Explanation:
The sum of 454 and 300 is 754.

Question 7.
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key Use Mental Math to Add 10s or 100s to a Number 3
Answer:
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key img 3

Explanation:
The sum of 319 and 50 is 369.

Question 8.
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key Use Mental Math to Add 10s or 100s to a Number 4
Answer:
McGraw Hill Math Grade 2 Chapter 5 Lesson 7 Answer Key img 4

Explanation:
The sum of 40 and 845 is 885.

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