Are you good at adding and subtracting?

  1. Developed by: Tangil

See if your math is good.

Question 1: 78+78-4=? (no calculators for the quiz!)
152
154
123

Question 2: 1x2x1x1x1x1x1=?
1
2
12111...

Question 3: 9090+9090
18182
18180
18170

Question 4: 789789-898989
I don't know
-109200
-56465486842...

Question 5: 8585-9595
-1110
-958
-1010

Question 6: 8548-563
7895
6895
7985

Question 7: 7585+8545-8569+8432
56548
45488
15993

Question 8: 1+1+1
9
8
3

Question 9: 12+12
24
23
26

Question 10: 95-95
6
5
0

t < 10 min

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The quiz is developed on: 2011-05-15

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