Practice the questions of **McGraw Hill Math Grade 4 Answer Key** **PDF Chapter 2 Lesson 7 Additive Comparison** to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 4 Answer Key Chapter 2 Lesson 7 Additive Comparison

**Solve.**

**Write the answer and the expressions you used to find it.**

Question 1.

A young male elephant is 85 inches tall. A young female elephant is 57 inches tall. If the female elephant grows to 102 inches tall, how tall will the male elephant be if they grow the same amount?

Answer:

Number of inches tall a young male elephant grows = 130.

Explanation:

Number of inches tall a young male elephant = 85.

Number of inches tall a young female elephant = 57.

Number of inches tallĀ if a young female elephant grows = 102.

Difference:

Number of inches tallĀ if a young female elephant grows – Number of inches tall a young female elephant

= 102 – 57

= 45.

Number of inches tall a young male elephant grows = Number of inches tall a young male elephant + 45

= 85 + 45

= 130.

Question 2.

A male box turtle is 17 years old. A female box turtle is 28 years old. When the male is 33 years old, how old will the female be?

Answer:

Number of years old is a female box turtle later = 44.

Explanation:

Number of years old is a male box turtle = 17.

Number of years old is a female box turtle = 28.

Number of years old is a male box turtle later = 33.

Difference:

Number of years old is a male box turtle later – Number of years old is a male box turtle

= 33 – 17

= 16.

Number of years old is a female box turtle later = Number of years old is a male box turtle later + 11

= 28 + 16

= 44.