Free 4th grade worksheets

Multiply a 2-digit number by a 1-digit number

2 printable PDFs, each with its answer key. These sheets practice multiplying a 2-digit number by a 1-digit number in columns, like 47 × 6.

What's on the sheet

20 problems written in columns, on US Letter paper, with a box for the score. Some from sheet 1:

  • 75 × 3 = 225
  • 63 × 5 = 315
  • 37 × 9 = 333
  • 90 × 9 = 810

Helping at home

In 4th grade, children multiply a two-digit number by a one-digit number using place value. 47 × 6 is 40 × 6 plus 7 × 6, which is 240 + 42 = 282. In columns, they multiply the ones first (7 × 6 = 42), write 2 and carry 4 tens, then multiply the tens (4 × 6 = 24) and add the carried 4 to make 28.

The most common slip is adding the carried digit before multiplying instead of after, which gives 4 + 4 = 8 and 8 × 6. Another is forgetting the carry altogether.

One way to help at home: let your child solve one problem both ways, with partial products (240 + 42) and in columns, and see that they match. Estimating helps too: 47 × 6 is close to 50 × 6 = 300, so 282 is sensible. Times tables to 10 × 10 are what make this fast, so a few minutes on facts pays off here.

Practice the same skill as a game

In larkit, your child plays this skill on screen, with a second try and a hint when a problem is hard. Free to try, no ads.

Play it free

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Common Core: 4.NBT.B.5