random
random
random
random
random
100

3-10/5

1

100

3+1+3 times 2

10

100

2+4-3/3

5

100

4-12/22

1

100

-10+ k/9=-11

k=9

200

2=2+b/9

b=16

200

9+n/5=5

n=16

200

-10+n/2=-12

n=-14

200

-9-7n=4(n-3)-8

n=-1

200

20-2p=4(-5p-4)

p=-2

300

-(7k=7)=11-4k

k=-6

300

-8(-8-3x)12=8x-34

x=-6

300

20% of what is 12?

60

300

40% of what is 8?

20

300

16 is 40% of what?

40

400

18 is 20% of what?

90

400

90% of 30 is what?

27

400

25% of 20 is what?

5

400

10% of 53 is what?

5.3

400

what is 50% of 56

28

500

6100 in scientific notation

6.1 x 103

500

0.0006 in scientific notation

6.0 x 10-4

500

71000 in scientific notation

7.1 x 104

500

0.0000908 in scientific notation

9.08 x 10-5

500

(9 x 102)(2.8 x 10-2)

2.3868 x 104

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