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Fast Math - Randomized Addition in 30 Seconds

In just 30 seconds, answer these randomly-generated addition problems in your head.
This quiz changes every time you play!
Quiz by Stewart
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Last updated: November 27, 2019
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First submittedApril 9, 2018
Times taken4,040
Average score37.5%
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Keep scrolling down for answers and more stats ...
 Problem 
Solution
1 + 256
257
492 + 34
526
6 + 165
171
520 + 52
572
 Problem 
Solution
456 + 1
457
385 + 49
434
539 + 50
589
93 + 444
537
 Problem 
Solution
114 + 1
115
20 + 76
96
268 + 42
310
401 + 20
421
 Problem 
Solution
141 + 65
206
275 + 12
287
94 + 313
407
1 + 171
172
+1
Level 59
Aug 17, 2023
The division one is easier for me, strangely.