We included HMH Into Math Grade 2 Answer Key PDF Module 15 Review to make students experts in learning maths.

Vocabulary

equation
operation

Question 1.
Complete the sentence.
In the ___ 22 – 10 = 12, the ______________ is subtraction.
In the equation 22 – 10 = 12, the expression
a statement that the values of two mathematical expressions are equal is subtraction.

Concepts and Skills

Write an equation to show the problem. Solve.

Question 2.
Lara has some rocks in her collection. She gets 34 rocks from a friend. Now she has 46 rocks.
How many rocks does Lara have to start?
______________________
______________________
Lara has ____ rocks to start.
Lara has 46 rocks
from that 34 of rocks are given by her friend
46 – 34 = 12
Lara has 12 rocks to start.

Question 3.
A store sells 42 bags of apples. There are 22 bags of apples left at the end of the day. How many
bags of apples were there to start?
______________
______________
There were ___ bags of apples to start.
42 +  22 = 62
Explanation:
A store sells 42 bags of apples.
There are 22 bags of apples left
There were 62 bags of apples to start.

Write an equation to show the problem. Solve.

Question 4.
Greg has 43 trading cards. He has 14 more trading cards than Celia. How many trading cards does Celia have?
______________________
______________________
Explanation:
He has 14 more trading cards than Celia.
43 – 14 = 29 trading cards

Question 5.
Greta has 55 marbles. She has 24 fewer marbles than Han. How many marbles does Han have?
Han has marbles.
______________________
______________________
Han has 79 marbles
Explanation:
Greta has 55 marbles.
She has 24 fewer marbles than Han.
55 + 24 = 79

Fill in the bubble next to the correct answer.

Question 6.
Denise has 8 toy cars. Matt has 5 toy cars. They buy 3 more toy cars. How many toy cars do they have?
A. 15
B. 16
C. 26
Explanation:
Denise has 8 toy cars.
Matt has 5 toy cars.
They buy 3 more toy cars
8 + 5 = 13
13 + 3 = 16
so, they had 16 cars in all.

Question 7.
There are 9 deer and 6 rabbits in the field. 2 more deer come to the field. How many animals are in the field now?
A. 17
B. 18
C. 27