Adding and taking away big numbers
Grade 4 · Level 3 · Sheet 1the answers
Free from tutor.in4me.app · 4.NBT.B.4 · Five minutes a day online, and the difficulty follows your child.
- 1.690099+229837
- 2.202574+392908
- 3.586872+206862
- 4.53768+210893
- 5.495719+184618
- 6.308464+498960
- 7.48107+588601
- 8.457952+443879
- 9.242300+73549
- 10.765688+176462
- 11.606545+296871
- 12.788066+145270
Show the answer key
- 1.919,936
- 2.595,482
- 3.793,734
- 4.264,661
- 5.680,337
- 6.807,424
- 7.636,708
- 8.901,831
- 9.315,849
- 10.942,150
- 11.903,416
- 12.933,336
Answer key · Adding and taking away big numbers · Level 3 · Sheet 1
- 1.919,936
- 2.595,482
- 3.793,734
- 4.264,661
- 5.680,337
- 6.807,424
- 7.636,708
- 8.901,831
- 9.315,849
- 10.942,150
- 11.903,416
- 12.933,336
The mistakes behind most wrong answers
A wrong answer in adding and taking away big numbers is rarely random. These are the ones that come up most often, each on a real problem — worth knowing before you mark a sheet, because the fix for each is different.
- 863,839+132,369=?
The answer is 996,208. A child who answers 996,209 probably counted one too many or too few.
- 211,782+88,412=?
The answer is 300,194. A child who answers 123,370 probably took away instead of adding.
- 986,345+4,498=?
The answer is 990,843. A child who answers 990,743 probably lost track of the ten.
- 92,635−65,778=?
The answer is 26,857. A child who answers 158,413 probably added instead of taking away.
In the app, every wrong answer is matched against mistakes like these, and the weekly email tells you which one your child keeps making — in those words, not as a percentage.