Missing numbers and inverse operations

Grade 4 · Free printable game: Secret code joke

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CCSS 4.NBT.B.4
Name:Date:

Secret code joke

Why was six scared of seven?

Answer each question. Find the letter next to the right answer and write it in the box with the same number. The letters spell the punchline!

  1. 7,500 − □ = 600S 6,900N 5,500T 3,650H 6,700
  2. □ + 3,850 = 7,500X 5,500E 3,650H 6,700O 5,300
  3. 7,500 − □ = 2,200V 5,300J 5,200K 2,250H 3,850
  4. 7,500 − □ = 1,200E 6,300Y 6,700I 3,850W 7,000
  5. □ + 1,300 = 8,000T 3,850N 6,700O 6,900Q 5,200
  6. □ + 1,150 = 5,000X 6,300A 3,850L 3,650Q 7,000
  7. □ + 1,100 = 6,000T 4,900Z 5,500B 7,000M 2,250
  8. 10,000 − □ = 3,000E 7,000V 6,300C 5,300T 5,200
  9. 4,500 − □ = 2,250A 1,150T 6,300O 3,650N 2,250
  10. 4,500 − □ = 3,350G 6,900S 5,200P 5,300I 1,150
  11. □ + 2,500 = 8,000N 5,500Z 7,000S 3,650Q 4,900
  12. □ + 2,800 = 8,000A 5,500O 2,250E 5,200X 3,850
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Missing numbers and inverse operations

Grade 4 · Worksheet

learnwith.games
CCSS 4.NBT.B.4
Name:Date:

Draw a line to join each card to its partner.

4,500 − □ = 2,250
6,300
□ + 2,500 = 8,000
3,650
□ + 3,850 = 7,500
2,250
7,500 − □ = 1,200
3,850
□ + 2,800 = 8,000
5,200
□ + 1,150 = 5,000
5,500

4,500 − □ = 3,350
6,700
10,000 − □ = 3,000
4,900
7,500 − □ = 2,200
5,300
□ + 1,300 = 8,000
7,000
□ + 1,100 = 6,000
6,900
7,500 − □ = 600
1,150

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Missing numbers and inverse operations

Grade 4 · Answer sheet

learnwith.games
CCSS 4.NBT.B.4

Secret code joke

Why was six scared of seven? SEVEN ATE NINE

1. 6,900 (S) · 2. 3,650 (E) · 3. 5,300 (V) · 4. 6,300 (E) · 5. 6,700 (N) · 6. 3,850 (A) · 7. 4,900 (T) · 8. 7,000 (E) · 9. 2,250 (N) · 10. 1,150 (I) · 11. 5,500 (N) · 12. 5,200 (E)

Worksheet

  1. 4,500 − □ = 2,250 → 2,250
  2. □ + 2,500 = 8,000 → 5,500
  3. □ + 3,850 = 7,500 → 3,650
  4. 7,500 − □ = 1,200 → 6,300
  5. □ + 2,800 = 8,000 → 5,200
  6. □ + 1,150 = 5,000 → 3,850
  7. 4,500 − □ = 3,350 → 1,150
  8. 10,000 − □ = 3,000 → 7,000
  9. 7,500 − □ = 2,200 → 5,300
  10. □ + 1,300 = 8,000 → 6,700
  11. □ + 1,100 = 6,000 → 4,900
  12. 7,500 − □ = 600 → 6,900

learnwith.games – free to print and copy for home and classroom use. learnwith.games/us/printables/missing-numbers-4-digits/