DOL G_3 M_1 Lesson 19

Complete the equations below to solve 22 ÷ 2 = ____.

b

c

d

e

a

10

11

1

1

• 10 +

Complete the equations to solve 21 ÷ 3 = __

a

b

c

7

2

5

Ursula draws the array below.

Which equation best represents the array Ursula drew?

• (54 ÷ 6) = (30 ÷ 6) + (24 ÷ 6)

• (30 x 24) = (54 ÷ 6)

• (54 ÷ 6) = (30 ÷ 6) - (24 ÷ 6)

• 30 ÷ 24

Harold organized all his counters in an array as shown below.

a. Find the division equation.

b. Find the break apart equation.

• a. 18 ÷ 3 = 6

  b. (15 ÷ 3) + (3 ÷ 3) = 5 + 1 = 6

• a. 15 ÷ 5 = 3

  b. (10 ÷ 5) + (5 ÷ 5) = 2 + 1 = 3

• a. 18 ÷ 6 = 3

  b. (18 ÷ 6) + (6 ÷ 6) = 3 + 1 = 4

• a. 18 ÷ 3 = 6

  b. (10 ÷ 2) + (8 ÷ 2) = 5 + 4 = 9

Jason draws the array below to find the answer to 36 ÷ 6.

Explain Jason's strategy.

Use the RDW strategy to show your solution.

• Yellow array is (36 ÷ 6) = 6

  Red array is (6 ÷ 6) = 1

  6 + 1 = 7

• Yellow array is (30 ÷ 6) = 5

  Red array is (6 ÷ 6) = 1

  5 - 1 = 4

• Yellow array is (30 ÷ 6) = 5

  Red array is (6 ÷ 6) = 1

  5 + 1 = 6

• Yellow array is (30 ÷ 6) = 5

  Red array is (6 ÷ 6) = 1

  30 + 6 = 36