Math Review 4th Grade

Fractions

100

What is the sum of 1/4 and 3/4

4/4 or 1 whole

200

What is the difference between 6/7 and 5/7

1/7

300

Compare: 4/6 and 1/4

4/6 > 1/4

400

Compare: 2/9 and 3/5

2/9 < 3/5

500

Find the sum of 3 2/5 and 2 4/5. There should NOT be an improper fraction, it should be a mixed number.

6 1/5

Multiplication

100

2 x 8

16

200

12 x 7

84

300

45 x 6

270

400

3,894 x 9

35,046

500

86 x 51

4,386

Division

100

7 / 1

7

200

10 / 5

2

300

24 / 9

2 R6

400

921 / 4

230 R1

500

8,901 / 5

1780 R1

Decimals

100

What is the decimal for 4/10

0.4

200

What is the difference between 0.9 and 0.4? What is the fraction equivalence?

0.5 = 5/10

300

What is 4 56/100 as a decimal

4.56

400

Compare: 2.06 and 2.1

2.06 < 2.1

500

Compare: 0.11 and 24/100

0.11 < 24/100

Conversions

100

How many inches are in 1 foot

12 inches

200

3kg = ____g

3000 g

300

120 minutes = ____ hours

2 hours

400

7 m and 34 cm = _____ cm

734 cm

500

6 hours = _____ seconds

21,600 seconds