Missing number worksheets
Equations with one empty box, for addition, subtraction, multiplication, division or a mix.
Look at the numbers going into and coming out of a machine and write the rule, which multiplies by a number.
Look at the numbers going into and coming out of a machine and write the rule, which multiplies by a number.
You can change any of these settings above. Press "New problems" for a fresh set with the same settings, or pick Version A to Z to print different sheets for neighboring desks. The answer key always matches.
Each machine shows numbers going in on the left and coming out on the right, with the rule in a window: add a number, subtract a number, multiply, or do two steps such as multiply by 2 and then add 3. Choose whether students find the numbers that come out, the numbers that went in, a mix of both, or the rule.
Working backwards is the first step towards solving equations, and finding the rule from the numbers is the first step towards writing algebra. Every machine uses numbers that always give whole-number answers, and the rule is the only one that fits.
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.
Equations with one empty box, for addition, subtraction, multiplication, division or a mix.
Arithmetic Latin-square puzzles: fill the grid so every cage hits its target. Each puzzle has exactly one solution.
A 4×4 sudoku where circles show the product of two neighboring cells. Practices factors and logic together.