Math Strategies Review

Integers

100

13-32

-19

200

8+5-3

10

300

56-8+2

50

400

-9+6-5+2

-6

500

I have $3. How much would I have if I spend $2 and then get $6?

$7

Fractions

100

What is 1/2 + 1/3 ?

5/6

200

What is 8/9 - 5/6 ?

1/18

300

What is 2/3 X 3/4 ?

17/12 or 1 5/12

400

What is 6/7 Divided by 2/3 ?

9/7 or 1 2/7

500

If I need 2/3 cups of water to make my Lemonade. How many cups would I need if I wanted to make 3 batches of Lemonade?

2 Cups

Decimals

100

0.5 + 2.1

2.6

200

2.35 - 1.20

1.15

300

2.3  / 0.5

4.6 

400

9.63 * 5.42

52.1946

500

I have 3.5 gallons of gas and I need to get more. How much more did I get, if I now have 17.9?

14.4 Gallons

Equations

100

2x=6

x=3

200

x-5=-2

x=3

300

3x-8=22

x=10

400

Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. How much did the present cost?

$22.20

500

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost?

$5

Inequalities

100

Solve and graph:   -12>x-7

-5>x or x<-5.  Open point at -5 and the line goes left.

200

Solve and Graph. K/4 < -4.

K<-16 and open point at -16 with the line going left. 

300

Solve and Graph:  7x-9>40

X>7. Open Point at 7 with the line going right.

400

Solve and Graph:  15+4x>55

X>10 and open point at 10 with the line going right.

500

Solve: 6<0.75X+0.51 

7.32<X