About this worksheet
Adding and subtracting whole numbers fluently lets fourth graders solve real multi-step problems with confidence is a major fourth-grade math step because students now work with larger numbers, multi-step reasoning, and more precise notation. Students may regroup in the wrong place or forget to check whether the problem asks for a sum or a difference. This worksheet gives short, self-checking questions that rotate through the parts of the skill instead of repeating one template. Students add and subtract multi-digit numbers, estimate for reasonableness, use inverse operations, and solve short word problems. Support versions keep the numbers friendlier while preserving the same reasoning. Standard and challenge versions add larger values, closer distractors, or an extra comparison step. Encourage your child to write down the place, operation, or unit before calculating. If an answer is close but does not match the requested place value, fraction denominator, or measurement unit, it is probably the trap answer.
What your child will learn
- Add multi-digit numbers
- Subtract with regrouping
- Estimate sums
- Use inverse checks
- Solve word problems
Worked example
46,318 + 27,409 = 73,727, and 73,727 - 27,409 checks the first addend.
Common mistake
Subtracting the smaller digit from the larger digit in each column instead of regrouping.
Helpful hint
Line up place values before calculating.
Worksheet 1