DrillGrades 1 to 2Grades 3 to 4
Missing number worksheets
Equations with one empty box, for addition, subtraction, multiplication, division or a mix.
Solve proportions
Find the missing value n in a proportion written with fractions or with colons.
About this worksheet
Each problem gives two equal ratios with one missing value, called n. Write the proportion as fractions, with colons, or a mix. The missing value can always be the last one, or can be any of the four.
Every answer is a whole number. The solved example uses cross products: multiply across, then divide.
Printing
US Letter or A4, portrait: choose your paper size above. Print at 100 percent (actual size). Use "Black and white" for the copier, or "Color" for display pages and mini books.
Popular versions
Ready-made settings for common topics.
- Solve proportions written with colons worksheets
- Solve proportions when n is the last number worksheets
- Solve simple proportions with small numbers worksheets
- Solve proportions with numbers up to 100 worksheets
- Solve proportions with numbers up to 200 worksheets
- Solve proportions written as fractions and as ratios worksheets
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