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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
383 + 45
428
525 + 9
534
25 + 538
563
6 + 379
385
 Problem 
Solution
385 + 170
555
245 + 10
255
8 + 337
345
579 + 2
581
 Problem 
Solution
40 + 98
138
11 + 220
231
12 + 439
451
220 + 25
245
 Problem 
Solution
251 + 107
358
216 + 58
274
508 + 16
524
8 + 314
322
1 Comments
+1
Level 60
Aug 17, 2023
The division one is easier for me, strangely.