Math Expressions Common Core Grade 3 Unit 1 Lesson 1 Answer Key Multiply with 5

**Math Expressions Grade 3 Unit 1 Lesson 1 Homework**

Use this chart to practice your 5s count-bys and multiplications. Then have your Homework Helper test you.

**Solve each equation. Then check your answers at the bottom of this page.**

Question 1.

8 × 5 = _____

Answer:

Multiply 8 with 5 then we get 40.

Question 2.

9 • 5 = _____

Answer: Multiply 9 with 5 then we get 45.

Question 3.

5 * 2 = ___

Answer: Multiply 5 with 2 then we get 10.

Question 4.

6 × 5 = ___

Answer: Multiply 6 with 5 then we get 30.

Question 5.

3 • 5 = _____

Answer: Multiply 3 with 5 then we get 15.

Question 6.

5 × 4 = ___

Answer: Multiply 5 with 4 then we get 20.

Question 7.

10 × 5 = ___

Answer: Multiply 10 with 5 then we get 50.

Question 8.

5 * 1 = ___

Answer: Multiply 5 with 1 then we get 5.

Question 9.

6 × 5 = ___

Answer: Multiply 6 with 5 then we get 30.

Question 10.

5 * 5 = ___

Answer: Multiply 5 with 5 then we get 25.

Question 11.

5 • 7 = ___

Answer: Multiply 5 with 7 then we get 35.

Question 12.

2 * 5 = _____

Answer: Multiply 2 with 5 then we get 10.

Question 13.

5 * 1 = ___

Answer: Multiply 5 with 1 then we get 5.

Question 14.

5 × 10 = ___

Answer: Multiply 5 with 10 then we get 50.

Question 15.

4 • 5 = ___

Answer: Multiply 4 with 5 then we get 20.

Question 16.

7 • 5 = ___

Answer: Multiply 7 with 5 then we get 35.

Question 17.

5 × 2 = ___

Answer: Multiply 5 with 2 then we get 10.

Question 18.

5 * 7 = ___

Answer: Multiply 5 with 7 then we get 35.

Question 19.

5 × 5 = ___

Answer: Multiply 5 with 5 then we get 25.

Question 20.

5 * 8 = ___

Answer: Multiply 5 with 8 then we get 40.

Question 21.

9 • 5 = ___

Answer: Multiply 9 with 5 then we get 45.

**Math Expressions Grade 3 Unit 1 Lesson 1 Remembering**

**Count by 5s to find the total number.**

Question 1.

Answer: 70 75 80 85 90

Question 2.

65 ___ ___ ___ ___ ___

Answer: 70 75 80 85 90

Explanation:

In the above figure we see five balls in each coloum.

Add 5 to 65 then we 70.

70 + 5 = 75

75 + 5 = 80

80 + 5 = 85

85 + 5 = 90

Question 3.

30 ___ ___ ___ ___ ___

Answer: 35 40 45 50 55

Explanation:

The next 5s of 30 are

Add 5 to 30 we get 35.

35 + 5 = 40

40 + 5 = 45

45 + 5 = 50

50 + 5 = 55

Question 4.

45 ___ ___ ___ ___ ___

Answer: 50 55 60 65 70

Explanation:

The next 5s of 45 are

Add 5 to 45 we get 50

50 + 5 = 55

55 + 5 = 60

60 + 5 = 65

65 + 5 = 70

Question 5.

75 ___ ___ ___ ___ ___

Answer: 80 85 90 95 100

Explanation:

The next 5s of the 75 are

Add 5 with 75 then we get 80

80 + 5 = 85

85 + 5 = 90

90 + 5 = 95

95 + 5 = 100

Question 6.

**Stretch Your Thinking** Liam starts at a number and counts by 5s. He counts by 5s six times and is now at the number 75. What number did Liam start counting from? Explain how you know.

Answer:

Liam starts at a number and counts by 5s.

He counts by 5s six times and it is now the number is 75.

75 – 5 = 70

70 – 5 = 65

65 – 5 = 60

60 – 5 = 55

55 – 5 = 50

Liam starts counting from 50.