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easy math
100

what is the square root of 64?

8

100

33 / (10 + 5 - 18) x 6

-66

100

x - 9 = 38

x = 47

100

I'm tall when I'm young and short 

when I'm old what am I?

a candle

100

486 - 325

161

200

what is the square root of 169?

13

200

90 + (-77)

13

200

x + 10 = 50

x = 40

200

what has hands but can't clap

a clock

200

723 +9786

10,509

300

what is the square root of 361?

19

300

(-46) - 69

-15

300

4 - 3x = 37

x = -11

300

what can run but can' walk?

water

300
6 x 6

36

400

what is the square root of 49?

7

400

(-16) + (-38)

-54

400

5x = 70

x = 14

400

what do the numbers 

11 , 69 , 88 all have in common

they all read the same upside down

400

1400 -456

944

500

what is the square root of 256?

16

500

(-86) + 71

-15

500

-4 + x = 15

x = 19
500

if there are three apples 

and you take two how many

apples do you have?

2 apples

500

1233 +876

2,109