Unit 1 Math Review

2 Digit Multiplication

100

52 X 20

1,040

200

78 X 34

2,652

300

95 X 95

9,025

400

326 X 17

5,542

500

618 X 54

33,372

Order of Operations

100

(6X6) / 4

9

200

(3+3)X(9-2)

42

300

2X(5+3)

16

400

50-(2X5)+4

44

500

15 / (7-4)X4

20

Correct Expression

100

Divide by 3 the product of 2 and 6.

4

200

Add 4 to the difference of 10 and 2.

12

300

Multiply the sum of 2 and 5 by 3.

30

400

Subtract 7 from the product of 5 and 6.

23

500

Multiply the sum of 3 and 3 by 7.

42

Expanded Notation

100

1,623

(1X1,000) +(6X100) +(2X10) +(3X1)

200

8,714

(8X1,000) +(7X100) +(1X10) +(4X1)

300

45,620

(4X10,000) +(5X1,000) +(6X100) +(2X10) 

400

22,928

(2X10,000) +(2X1,000) +(9X100) +(2X10) +(8X1)

500

514,451

(5X100,000) +(1X10,000) +(4X1,000) +(4X100) +(5X10) +(1X1)

Powers of Ten

100

3 X 10⁴ is the same as _____.

3,000

200

60 X 10² is the same as ___?

6,000

300

50 X 10⁶ X 3 equals _______.

150,000,000

400

1,500 X 10² is the same as ________.

150,000

500

500 X 10³ X 10⁴ is the same as ______.

5,000,000,000