All the solutions provided in **McGraw Hill My Math Kindergarten Answer Key PDF Chapter 3 Lesson 3 Number 15 **will give you a clear idea of the concepts.

## McGraw-Hill My Math Kindergarten Answer Key Chapter 3 Lesson 3 Number 15

**Explore and Explain**

Answer:

Explanation:

One ten frame has 10 aliens represent ten ones

The other ten frame has 5 aliens it is 5 ones

Ten ones and five ones is 15

**Teacher Directions:** Place on each object. Count the objects. Say the number. Trace the number.

**See and Show**

Question 1.

fifteen 15

Answer:

Explanation:

One ten frame has 10 objects represent ten ones

The other ten frame has 5 objects it is 5 ones

Ten ones and five ones is 15

Question 2.

Answer:

Explanation:

One ten frame has 10 flags represent ten ones

The other ten frame has 5 flags it is 5 ones

Ten ones and five ones is 15

Question 3.

Answer:

Explanation:

One ten frame has 10 objects represent ten ones

The other ten frame has 5 objects it is 5 ones

Ten ones and five ones is 15

**Directions:** 1. Count the objects. Say how many. Use Work Mat 4 and counters to show the number. Trace the number three times. 2-3. Count the objects. Say how many. Use Work Mat 4 and counters to show the number. Write the number three times.

**On My Own**

Question 4.

Answer:

Explanation:

One ten frame has 10 objects represent ten ones

The other ten frame has 5 objects it is 5 ones

Ten ones and five ones is 15

Question 5.

Answer:

Explanation:

One ten frame has 10 circles represent ten ones

The other ten frame has 5 circles it is 5 ones

Ten ones and five ones is 15

Question 6.

Answer:

Explanation:

One ten frame has 10 circles represent ten ones

The other ten frame has 5 circles it is 5 ones

Ten ones and five ones is 15

**Directions:** 4. Count the objects. Say how many. Use Work Mat 4 and counters to show the number. Write the number three times. 5-6. Trace the number three times. Say how many. Use Work Mat 4 and counters to show the number. Draw circles for counters to show the number.

**Problem Solving**

Question 7.

Answer:

Explanation:

Each alien represents one circle. There are 15 aliens.

One ten frame has 10 circles represent ten ones

The other ten frame has 5 circles it is 5 ones

Ten ones and five ones is 15

**Directions:** 7. Use Work Mat 4 and counters. Count the aliens on the page. Say how many. Draw circles in the ten-frame for every alien counted. Write the number.

### McGraw Hill My Math Kindergarten Chapter 3 Lesson 3 My Homework Answer Key

Question 1.

Answer:

Explanation:

One ten frame has 10 apples represent ten ones

The other ten frame has 5 apples it is 5 ones

Ten ones and five ones is 15

Question 2.

Answer:

Explanation:

One ten frame has 10 apples represent ten ones

The other ten frame has 5 apples it is 5 ones

Ten ones and five ones is 15

**Directions:** 1-2. Count the objects. Say how many. Trace the number. Write the number two times.

Question 3.

Answer:

Explanation:

One ten frame has 10 balls represent ten ones

The other ten frame has 5 balls it is 5 ones

Ten ones and five ones is 15

Question 4.

Answer:

Explanation:

One ten frame has 10 oranges represent ten ones

The other ten frame has 5 oranges it is 5 ones

Ten ones and five ones is 15

**Vocabulary Check**

Question 5.

fifteen 15

Answer:

Explanation:

Ten ones and five ones is 15.

We need to make ten boxes and five boxes that is 10 + 5 = 15

**Directions:** 3-4. Count the objects. Say how many. Write the number three times. 5. Draw boxes to show the number.

**Math at Home** Show your child objects such as pennies or dry cereal. Have your child count the objects to create a group of 15.

Explanation:

We have a two group of pennies.

First group has 10 pennies and second group has 5 pennies

10 + 5 =15

Total 15 pennies