Unit 2 Review

Addition

100

3,425 + 2,314

5,739

200

24,678 + 13,459

38,137

300

156,782 + 247,695

404,477

400

125,430 + 236,815 + 142,670

504,915

500

5,000,000 + 3,284,354 + 1,736

8,286,090

Subtraction

100

876 − 342

534

200

4,562 − 2,738

1,824

300

35,421 − 18,765

16,656

400

562,304 − 287,658

274,646

500

9,000,000 - 8,999,214

786

Patterns

100

Start with 5. Add 3 each time. What is the 5th number?

17

200

Start with 40. Subtract 6 each time. What is the 5th number?

16

300

Start with 12. Add 15 each time. What is the 6th number?

87

400

Start with 100. Subtract 12 each time. What is the 5th number?

52

500

Start with 10...What will be the 4th number in the pattern "MULTIPLY BY 2 AND SUBTRACT BY 5"

45

1. 10 (starting number)

2. 10 X 2 - 5 = 15

3. 15 X 2 - 5 = 25

4. 25 X 2 - 5 = 45