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What's on the worksheet
- Make one number round first.
- Does it equal 398 + 245?400 + 243 \qquad yes \quad no400 + 247 \qquad yes \quad no400 + 245 − 2 \qquad yes \quad no400 + 245 + 2 \qquad yes \quad no
- Mei plants 185 seeds in the garden.
- Aisha's class collects bottle caps for three weeks.
- Mateo buys a ball for 2.98 dollars.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Compensation when adding and subtracting: the lesson ›More Chapter 4 worksheets: Adding, subtracting and rounding within 1,000
- 4.1Compensation when adding and subtracting
- 4.2Counting up to find a difference
- 4.3Rounding to the nearest ten or hundred
- 4.4Estimating sums and differences