Addition
Subtraction
Multiplication
Division
Mix-Up
100

Q+4=12

Q=8

100

Q-2=3

Q=5

100

3x=18

x=6

100
20/N=4

N=5

100

421+N=522

N=101

200

N+13=24

N=11

200

N-23=17

N=40
200

4N=100

N=25
200
100/N=10
N=10
200

530-N=220

N=310

300

N+21=34

N=13
300

N-150=0

N=150

300

9x=0

x=0

300
49/N=7

N=7

300

32n=192

n=6

400

N+41=53

N=12
400
45-N=22

N=23

400
42N=84

N=2

400

300/N=10

N=30

400

122/N=61

N=2
500

D+122=214

D=92

500

N-124=24

N=148

500

13x=65

x=5

500

Mark has 10 apples he gives 2 to each friend. How many friends does he have.

Friends=5

500
43n=172

n=4

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