Grade 4 Math

Numbers over 1,000,000

This topic keeps big numbers concrete: children read them in groups, compare the million and thousand parts, and estimate before calculating.

How to solve this

  • Do not read 2,500,000 digit by digit. Read it as 2 million and 500 thousand; the groups give the number its meaning.
  • When two numbers both have millions, compare the million group first, then the thousand group, then the last three digits.
  • For estimates, round to a useful place: 9,840,000 is close to 10,000,000, which is enough for a quick size check.

Examples

2,500,000 __ 2,050,000

>

3,200,000 + 400,000

3,600,000

9,840,000 rounded to the nearest million

10,000,000

Practice problems with answers

Solve these problems on paper or out loud, then check the answer key. The online practice and the printable worksheet give a new set every time.

  1. 4 285 142 + 139 000 = ___
  2. 9 786 114 - 28 886 = ___
  3. 8 750 000, 9 000 000, 9 250 000, ___
  4. Digit sum 4 710 572 = ___
  5. 4 481 387 ≈ ___ (to nearest 10 000)
  6. 1 000 000, 1 250 000, 1 500 000, ___
  7. 9 704 130 - 11 455 = ___
  8. 3 500 000, 3 750 000, 4 000 000, ___
Show answers
  1. 4 424 142
  2. 9 757 228
  3. 9 500 000
  4. 26
  5. 4 480 000
  6. 1 750 000
  7. 9 692 675
  8. 4 250 000

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