Topic 3 Review

6 - 5

8 - 8

10 - 10

9 - 9

• Every difference equals 3.

• Every difference is less than 2.

• Every difference equals 11-5

8 - 6

12 - 8

15 - 8

4 - 0

• Every difference equals

  16 - 8.

• Exactly 3 differences are even.

• Every difference equals 3.

18 - 9

16 - 7

11 - 2

10 - 1

• Exactly 2 differences are equal.

• Every difference is greater than 8.

• Exactly 3 differences are odd.

12 - 9

9 - 6

11 - 8

10 - 7

• Exactly 3 differences are even.

• Every difference equals 3.

• Every difference is less than 2.

Circle the numbers that have a 3 in the ones place.

Cross out the numbers that do not have an 8 in the tens place.

Use the hundreds chart to find the sum of 85 + 15.

• 100

• 95

• 99

Use the hundreds chart to find the sum of 60 + 23.

• 83

• 72

• 82

• 73

Use the open number line to find 50 + 30.

Use the open number line to find 38 + 23. Add the tens and then the ones.