Math Review- Addition, Subtraction, Multiplication, Division, and Algebraic Expressions

Addition

100

 23 + 18 =

41

200

145 + 276 =  

421

300

3,508 + 2,697 =

6,205

400

12.4 + 8.75 =  

21.15

500

4,589 + 7,846 + 3,102 =

15,537

Subtraction

100

50 − 27 =

23

200

600 − 245 =

355

300

9,000 − 4,876 =

4,124

400

18.5 − 7.92 =  

10.58

500

12,450 − 8,739 =

3,711

Multiplication

100

6 × 7 =

42

200

14 × 12 =

168

300

35 × 28 =  

980

400

4.5 × 3.2 =

14.4

500

125 × 64 =

8,000

Division

100

36 ÷ 6 =

6

200

144 ÷ 12 =

12

300

525 ÷ 21 =

25

400

63.6 ÷ 4 =

15.9

500

3,456 ÷ 24 =

144

Algebraic Expressions

100

x+y=14 and y=6  

x = 8

200

2y+x=20 and x=4  

y=8

300

3y+x=27

x=12

y=5

400

2x+y=19

y=3

x=8

500

2x+3y=25

y=5

x=5