4th Grade Math

Multiplication

100

10 x 15

150

200

20 x 8

160

300

20 x 12

240

400

23 x 46

1,058

500

125 x 20

2,500

Division

100

42➗6

7

200

75➗3

25

300

280➗7

40

400

723 ➗ 3

241

500

8,135 ➗ 4

2,034

Fractions

100

2/5 + 3/5 =

5/5 or 1

200

5 1/3 - 2 1/3 

3

300

Convert 23/8 to a mixed number.

2 7/8

400

Which fraction is greater, 1/3 and 2/4?

2/4

500

3 2/6 - 1 4/6

1 4/6

Geometry

100

Which one is NOT another name for a square.

A. Parallelogram

B. Rhombus

C. Trapezoid

D. Rectangle

C. Trapezoid. They only have 1 set of parallel lines. Squares have 2 sets.

200

What do we call a 5 sided shape?

A Pentagon

300

What are parallel lines? 

Straight lines that will never touch.

400

What are perpendicular lines?

Lines that cross at a 90 degree angle. 

500

What do you call a 4 sided shape with only one set of paralell lines? 

A Trapezoid.

Decimals

100

Complete the comparison.

3.09 ______ 3.20

3.09 < 3.20

200

Convert 3/100 to decimal form.

.03 or 0.03

300

Convert 7/10 to decimal form.

.7 or 0.7

400

Find the sum 25/100 + 4/10

65/100

500

Find the difference between 6/10 - 32/100

28/100