All the solutions provided in McGraw Hill My Math Grade 2 Answer Key PDF Chapter 4 Check My Progress will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Chapter 4 Check My Progress Answer Key
Check My Progress Page No. 247-248
Vocabulary Check
Complete the sentence.
fact family regroup
Question 1.
The numbers 3, 5, and 8 make up a ______
Answer:
fact family
Explanation:
The numbers 3, 5, and 8 make up a fact family
Concept Check
Complete the fact family.
Question 2.
_____ + ____ = _____ _____ – ____ = _____
_____ + ____ = _____ _____ – ____ = _____
Answer:
7 + 12 = 19 19 – 12 = 7
12 + 7 = 19 19 – 7 = 12
Explanation:
let us consider the numbers 7,12 and 19 in the fact family
7 + 12 = 19 19 – 12 = 7
12 + 7 = 19 19 – 7 = 12
Take apart a number to make a ten. Then subtract.
Question 3.
Answer:
Explanation:
To make ten the number is divided into 2 parts
as the subtraction makes easy.
Question 4.
Answer:
Explanation:
To make ten the number is divided into 2 parts
as the subtraction makes easy.
Subtract.
Question 5.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 6.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 7.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 8.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 9.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 10.
Answer:
Explanation:
Regrouping of ones place as tens
we cannot subtract a bigger number from a smaller number
Question 11.
There are 35 robins in a park. 14 of them fly away. How many robins are left in the park?
____ robins
Answer:
21 robins
Explanation:
There are 35 robins in a park.
14 of them fly away.
35 – 14 = 21
21 robins are left in the park.
Test Practice
Question 12.
Yesterday, there were 77 tulips blooming in the garden. Today, 8 of them have wilted. How many tulips are still blooming?
(A) 69
(B) 78
(C) 79
(D) 85
Answer:
A
Explanation:
there were 77 tulips blooming in the garden.
8 of them have wilted.
77 – 8 = 69
69 tulips are still blooming