Printable Mental Multiplication Worksheets
Printable mental multiplication worksheets for 3rd and 4th grade, with an answer key on every sheet. The sets below cover 4 different skills, so you can start where your child actually is. Available as speed drills and word problems.
Targeted Practice by Skill
Multiply by 10, 100 and 1,000
Mult By 10s
Multiply by 10, 100 and 1,000
Multiplication Mental Multiplication 01
Doubling and halving
Mult By 10s
Doubling and halving
Multiplication Mental Multiplication 02
Break apart to multiply
Mult By 10s
Break apart to multiply
Multiplication Mental Multiplication 03
Multiply mentally within 100
Mult By 10s
Multiply mentally within 100
Multiplication Mental Multiplication 04
About Mental Multiplication
What this skill is
Mental multiplication teaches mental shortcuts for multiplying without paper algorithm steps, including multiplying by 10, 100, 1,000, doubling/halving, and partial products.
When children learn it
Mental multiplication strategies are taught in 3rd through 5th grade, aligned to 4.NBT.B.5 and 5.NBT.B.5.
Teaching Tips
- To multiply by 10, shift digits one place left and append a zero.
- Break numbers into tens and ones (e.g., 4 x 12 = 4x10 + 4x2 = 40 + 8 = 48).
Common Mistakes
- Adding incorrect number of trailing zeros when multiplying by 10 or 100.
- Losing track of partial products during mental addition steps.