Math Review

Decimals

100

23.3 + 1.7 = 

25

200

23.3 - 1.7 = 

21.6

300

0.7 x 9 = 

6.3

400

20.5  /  0.5 = 

41

500

2.3 x 2.3 =

5.29

Multiplication Facts

100

5 x 6 = 

30

200

9 x 4 = 

36

300

8 x 3 = 

24

400

12 x 9 = 

108

500

9 x 8 = 

72

Fractions

100

1/2 + 1/4 = 

3/4

200

1/2 - 1/8 = 

3/8

300

45/7 as a mixed number is 

6  3/7

400

5  4/5 as an improper fraction is 

29/5

500

3/5 x 8 = 

4  4/5

Expressions

100

(3 + 2 ) x 5 - 1 = 

24

200

4 + (10 - 2 x 3) - 1

7

300

(45 - 20) / 5

5

400

4 x 5 / (10 - 8)

10

500

(8 x 3 / 6) + (100 / 10)

14

Place Value

100

How many times greater is the first 8 in 18,428? 

1,000

200

What is the standard form of (7 x 10) + (5 x 1) + (4 x 1/10)  

75.4

300

What is 4.56 x 10³ 

4,560

400

What is 0.5 / 10²

0.005

500

What is the standard form of (4 x 100,000) + (5 x 1,000) + (8 x 10) + (9 x 1) + (9 x 1/10) + (5 x 1/100) + (4 x 1/1000)

405,089.954