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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 taken4,865
Average score37.5%
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 Problem 
Solution
78 + 517
595
6 + 44
50
23 + 340
363
38 + 339
377
 Problem 
Solution
348 + 17
365
169 + 7
176
399 + 4
403
372 + 35
407
 Problem 
Solution
4 + 297
301
151 + 171
322
134 + 299
433
468 + 26
494
 Problem 
Solution
74 + 295
369
255 + 4
259
296 + 104
400
16 + 437
453
1 Comments
+1
Level 60
Aug 17, 2023
The division one is easier for me, strangely.