Math 5 Extra Credit!

Decimal Fractions

100

What is 3.028 as a fraction?

3 28/1000

200

What is this as a decimal fraction?

1 158/1000

1.158

300

How do you write out this number? 5.812

Five and eight hundred twelve thousandths 

400

What is three hundred five thousandths as a decimal fraction?

0.305

500

What number is in the tenths spot? 215.6193

"6"

Expanded Form

100

What is 2.12 as an expanded form?

(2x1)+(1x0.1)+(2x0.01)

200

What is the expanded form of 2.348?

(2x1)+(3x0.1)+(4x0.01)+(8x0.001)

300

What is the decimal fraction for this expanded form?

(21x1)+(1x0.1)+(3x0.001)

21.103

400

What is this as a decimal fraction?

(87x1)+(8x0.01)+(7x0.1)

87.78

500

What is the expanded form of this number?

158.003

(158x1)+(3x0.001)

Negative Numbers

100

7-8=

-1

200

-24+8=

-16

300

-11 xx 8=

-88

400

-20 + 21=

1

500

75 xx -12=

-900

Area and Volume

100

Area of a rectangle that has a length of 5ft and a width of 6ft.

30ft²

200

Area of a rectangle with length 12cm and width 10cm.

120cm³

300

Volume of a box with length 4ft, width 5ft and height 8ft.

160ft³

400

How many boxes with the volume of 25ft³ can fit in a container that is 25ft long, 50ft wide and 40ft tall?

2,000

500

What is the volume of a container that is 26ft by 10ft by 13ft?

3,380 ft³

Too Difficult!

100

6²

36

200

What are the dimensions of the box with a volume of 4,080ft³? You cannot use the numbers 1 or 2 in your answer.

Answers will vary. Optimal choice: 15x16x17

300

7³?

343

400

3+6x4-1+9-7+4x16=

92

500

2/15 + 4/60=

What is this answer simplified?

1/5