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What's on the worksheet
- Is it true?4 + 9 = 9 + 4 \quad yes \quad no5 + 6 = 6 + 6 \quad yes \quad no2 + 7 = 7 + 2 \quad yes \quad no8 − 3 = 3 − 8 \quad yes \quad no6 + 0 = 6 \quad yes \quad no
- The bike rack has 4 red bikes and 9 blue bikes.
- Diego has toy dinosaurs.
- Zoe adds 7 + 6 + 3.
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The free lesson teaches it with worked examples and practice problems.
Properties of addition: the lesson ›More Chapter 2 worksheets: Addition strategies within 20
- 2.1Counting on to add and counting back to subtract
- 2.2Doubles and near doubles
- 2.3Making ten and bridging through ten
- 2.4Properties of addition
- 2.5Adding within five and ten