Unit 1 Math Review

Expanded Form

100

What is 3,029 in expanded form?

(3 x 1000)+(2 x 10)+ (9 x 1)

200

What is 1,503 in expanded notation?

(1 x 1,000)+(5 x 100)+(3 x 1)

300

What is 13,967 in expanded form?

(1 x 10,000)+(3 x 1,000)+

(9 x 100)+(6 x 10)+(7 x1) 

400

What is 9,047 in expanded notation?

(9 x 1,000)+(4 x 10)+(7 x 1)

500

What is 12,456 in expanded form?

1 x 10,0000 + 2 x 1000 +4 x 100 +5 x 10 +6 x 1

Times Ten or One Tenth

100

Is the value of the underlined digit ten times or one tenth?

 1,076,552 

ten times

200

Is the value of the underlined digit ten times or one tenth?

2,892,231

one tenth

300

Is the value of the underlined digit ten times or one tenth?

489,104,143

neither

400

Is the value of the underlined digit ten times or one tenth?

678,892,456

one tenth

500

Is the value of the underlined digit ten times or one tenth?

66,982

ten times

Powers of 10

100

10¹

10

200

10³

1,000

300

67 x 10⁴

670,000

400

70 x 10³

70,000

500

230 x 10⁵

23,000,000

Double-Digit Divisor

100

695 ÷ 11 =

695 ÷ 11 = 63 R2

200

602 ÷ 33 =

602 ÷ 33 = 18 R8

300

767 ÷ 42 =

767 ÷ 42 = 18 R11

400

4,657 ÷ 19 =

4,657 ÷ 19 = 245 R2

500

3,189 ÷ 23 =

3,189 ÷ 23 =138 R15

Double-Digit Multiplication

100

74 x 69

5,106

200

75 x 69

5,175

300

64 x 29

1,856

400

83 x 47

3,901

500

98 x 89

8,722

What a Value & Rounding

100

Round the following number to the tens place

16

20

200

Is the value of the underlined digit?

 1,076,520

5 Hundreds or 500

300

Round the following number to the thousands place 9,332

9,000

400

Round the number to the ten thousands place 156,983

160,000

500

Is the value of the underlined digit?

46,982

6 thousands or 6,000