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Classroom · Multi-digit multiplication · 4th grade

2-digit by 1-digit multiplication worksheets

A free five-page pack for 4th grade: learn to multiply a 2-digit number by a 1-digit number, with a worked example, practice pages, word problems and an answer key.

Download the 2-digit by 1-digit multiplication pack(5 pages, color)Ink saver (B&W)

Watch it solved

52 sec · with voice and captions

A pencil works one example of each activity, so you can see how the worksheet goes before you print it. Tap a step to jump to it. The rest of the sheet is left for your child to finish.

Read what the video says
  1. 0:00 Let's practice 2-digit by 1-digit multiplication, step by step.
  2. 0:05 Split the 2-digit number into tens and ones. 20 × 4 = 80, 3 × 4 = 12, and 80 + 12 = 92.
  3. 0:16 28 × 6. Multiply each part, then add them: 120 + 48 = 168.
  4. 0:26 Start with the ones. 2 × 5 is 10: write 0, carry 1. 2 × 1 plus 1 is 3. 15 × 2 = 30.
  5. 0:36 Word problems. Each shelf holds 57 books. How many books fit on 7 shelves? The answer is 399.
  6. 0:46 Great job! Now print the free worksheet, and finish the rest on your own.

How to do it

Split the 2-digit number into tens and ones. For 23 × 4: 20 × 4 = 80 and 3 × 4 = 12, so 23 × 4 = 80 + 12 = 92.

Teaching tip

Start with the area model, then show the same partial products in columns. When children see both side by side, carrying makes sense.

Try some

  • 15 × 2Tap to check
  • 77 × 8Tap to check
  • 19 × 9Tap to check
  • 62 × 3Tap to check
  • 23 × 3Tap to check
  • 57 × 9Tap to check
  • 51 × 8Tap to check
  • 41 × 7Tap to check

Word problems

Each shelf holds 57 books. How many books fit on 7 shelves?Show answer

399

Sam's class goes on a trip in 7 buses with 37 children each. How many children?Show answer

259

A farm packs eggs in cartons of 12. How many eggs are in 57 cartons?Show answer

684

Sara walks 47 steps to the mailbox and back, 4 times a week. How many steps?Show answer

188

What the worksheets look like

2-digit by 1-digit multiplication worksheet: how it works, then area models
Page 1: how it works, then area models
2-digit by 1-digit multiplication worksheet: multiply in columns
Page 2: multiply in columns

Area model template

Blank area models to split any multiplication into easy parts.

Template(1 page, color)Ink saver (B&W)

Common questions

How do you teach 2-digit by 1-digit multiplication?

Split the 2-digit number into tens and ones. For 23 × 4: 20 × 4 = 80 and 3 × 4 = 12, so 23 × 4 = 80 + 12 = 92. Start with the area model, then show the same partial products in columns. When children see both side by side, carrying makes sense.

What grade learns 2-digit by 1-digit multiplication?

Usually 4th grade. In the Common Core it is part of 4.NBT.B.5.

Is there an answer key?

Yes. Page 5 has every answer from the pack and a short teaching tip.