How do you identify a rule for a pairs of numbers like

3 and 1210 and 404 and 16

In this lesson you will learn to find number patterns by

solving multiplication and division In and Out patterns.

Let’s ReviewLet’s Review

25, 30, 35, 40, 45

100, 75, 50, 25

Let’s ReviewA Common Mistake

Stopping after the first pair of numbers when working with In and Out patterns.

Keep going!

Let’s ReviewCore Lesson

3 IN

OUT 12

IN OUT

3 12

Let’s ReviewCore Lesson

10 IN

OUT 40

IN OUT

8 12

10 40

Let’s ReviewCore Lesson

4 IN

OUT 16

IN OUT

3 12

10 40

4 16

Increasing means + or X

Let’s ReviewCore Lesson

45 IN

OUT 9

IN OUT

45 9

Let’s ReviewCore Lesson

30 IN

OUT 6

IN OUT

45 9

30 6

Let’s ReviewCore Lesson

25 IN

OUT 5

IN OUT

45 9

30 6

25 5

Decreasing means - or

In this lesson you have learned to find number patterns by solving multiplication and

division In and Out patterns.

Let’s ReviewGuided Practice

IN

OUT

IN OUT

18 6

9 3

15 ?

Let’s ReviewGuided Practice

IN

OUT

IN OUT

4 16

2 8

6 ?

Let’s ReviewExtension Activities

Design your own In and Out Machine.

Pick a multiplication rule. Make 3 pairs of numbers that follow the rule.

Pick a division rule. Make 3 pairs of numbers that follow the rule.

Let’s ReviewExtension Activities

Identify the rule to find the missing number. Challenge - mixed operations.

IN OUT

32 4

48 6

64 ?

IN OUT

24 13

36 25

48 ?

IN OUT

9 13

36 40

27 ?

Let’s ReviewExtension Activities

1. Trade multiplication and division number pairs.

2. Figure out the rule.

3. Discuss how you found the rule.

Let’s ReviewQuick Quiz

Identify the rule to find the missing number.

IN OUT

4 24

10 60

7 ?

IN OUT

32 8

16 4

24 ?