Four-Digit by One-Digit Multiplication Worksheets for 4th Grade

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Grade 4MathMultiplication & DivisionCCSS 4.NBT.B.5

Skill: Multiplying four-digit numbers by a one-digit number

Preview of the Four-Digit by One-Digit Multiplication printable worksheet
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Teaching tips and what to try next

A natural next page for fourth graders who are accurate with Multi-Digit Multiplication: 2-Digit and 3-Digit by 1-Digit and know most facts to 9 by 9. If facts are still slow, keep a times-table chart nearby so the carrying steps get the attention. Continue with two-digit factors in Two-Digit by Two-Digit Multiplication, or read about the standard at 4.NBT.B.5.

10 versions, each with its own answer key

Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).

Download all 10 versions (one PDF)All 10 answer keys (PDF)

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About this worksheet

Fourth graders multiply whole numbers of up to four digits by a one-digit number. Four-digit problems are the biggest ones in the fourth-grade standard, and they need careful carrying across every place. This fourth-grade worksheet gives sixteen vertical multiplication problems with room to work.

Each problem multiplies a number from 1,001 to 9,999 by a one-digit number from 3 to 9. The answers have four or five digits. Some top numbers have a zero in the middle, such as 4,062, which reminds children that a zero digit still needs any carried number added in. Each of the ten versions has new problems and its own answer key.

How to use it: have your child start with the ones digit, write the ones of each product below the line, and carry the tens to the next place as a small number. A common mistake is multiplying the carried number instead of adding it, so say each step out loud: "6 times 3 is 18, plus the 2 I carried is 20." Before starting, ask for an estimate by rounding the big number to the nearest thousand; 4,062 times 6 is about 24,000. If the answer is far from the estimate, look for a missed carry. Children who are still learning the steps can solve a problem with an area model, breaking the number into thousands, hundreds, tens, and ones, and then compare with the standard way.

For smaller numbers first, try our Multi-Digit Multiplication: 2-Digit and 3-Digit by 1-Digit worksheet. For the next step, try our Two-Digit by Two-Digit Multiplication worksheet.