Decimals•Grade 7•Missing Number

Grade 7 Decimals Missing Number

Grade 7 decimals missing number sheet: 24 problems on multiplying and dividing signed decimals, missing terms with signed decimals.

CCSSAligned to Common Core 7.NS.2: Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers, including converting a rational number to a decimal using long division.

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Three different problem sets — same skill, same layout, fresh numbers.

Preview — Set A

Find the number that belongs in each blank.

  1. 1.
    -4.0 × ___ = -8.0
  2. 2.
    2.4 + ___ = 0.9
  3. 3.
    -7.7 × ___ = -30.8
  4. 4.
    -2.0 + ___ = 1.0
  5. 5.
    -4.7 × ___ = -14.1
  6. 6.
    -2.0 + ___ = -6.5
  7. 7.
    0.5 × ___ = 1.5
  8. 8.
    7.6 + ___ = 10.0
  9. 9.
    -0.1 × ___ = -0.6
  10. 10.
    -6.3 + ___ = -6.8
  11. 11.
    2.1 × ___ = 14.7
  12. 12.
    8.1 + ___ = 7.6
  13. 13.
    -7.0 × ___ = -49.0
  14. 14.
    -7.9 + ___ = -4.5
  15. 15.
    4.9 × ___ = 19.6
  16. 16.
    -7.1 + ___ = -1.4
  17. 17.
    -9.5 × ___ = -47.5
  18. 18.
    -9.4 + ___ = -14.3
  19. 19.
    -6.4 × ___ = -25.6
  20. 20.
    -3.1 + ___ = 4.1
  21. 21.
    4.2 × ___ = 12.6
  22. 22.
    -6.6 + ___ = -14.7
  23. 23.
    8.8 × ___ = 44.0
  24. 24.
    0.6 + ___ = -5.5

What this worksheet covers

Set A of this grade 7 missing number sheet holds 24 decimals problems on one printable page, with the answer key on the page behind it. Eighteen of the 24 problems involve a negative quantity and some operands are decimals rather than whole numbers. Two problems from the middle of the page — "-0.1 × ___ = -0.6" and "-9.5 × ___ = -47.5" — show the range. It is written against Common Core 7.NS.2 — The Number System, grade 7.

Skills practiced

The grade 7 decimals sequence covers adding, subtracting, multiplying and dividing signed decimals, and repeating decimals; this page sits inside it. Specifically, the problems practice multiplying and dividing signed decimals and missing terms with signed decimals. Working the page asks a student to keep the decimal points aligned, track direction as well as magnitude, and reason backwards from a result to a missing part. Seventeen different answers appear across the 24 problems, so a student cannot copy one result down the page.

About the missing number format

The 24 problems here move the unknown around, so a student solves for a missing part as often as for a result; problem 9, "-0.1 × ___ = -0.6" is one of them. A missing addend or factor with decimals asks the student to undo an operation, which exposes place-value gaps that forward computation hides.

Set A, Set B and Set C

The three sets come from the same generator with three different seeds: same skill, same layout, fresh numbers, and an answer key computed with the problems. Where Set A's problem 13 is "-7.0 × ___ = -49.0", Set B's is "-9.2 × ___ = -18.4".

How to use this worksheet

Expect twenty minutes or so of real attention for 24 problems. At grade 7, decimals rewards care over speed — a rushed missing number gets the arithmetic right and the signs or units wrong. Mark the 24 problems the same day using the key — an error caught immediately is a correction, and one caught next week is a habit.

Other grade 7 decimals formats

The same skill in the other formats available at this grade.

A step either side

The same format one grade down and one grade up — the easier sheet is often the faster fix when this one is not landing.

Missing Number sheets in other grade 7 topics

Free to download, print and photocopy for a whole class: three missing number sheets of grade 7 decimals, 24 problems each, keys included.

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