Day 3
WALT: I am learning to use compatible numbers to solve problems like 5 + 3 + 6 - 8, by first adding five and three to get eight then removing the eight.
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4 + 2 + 5 - 9 = 4+2=6+6=11-9=2
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8 + 5 + 2 -7 =8+5=13+2=15-7=8
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10 + 2 + 7 - 12 =10+2=12+7=19-12=7
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10 + 5 - 15 = 10+5=15-15=0
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2 + 6 + 4 + 3 - 7 =2+6=8+4=12+3=15-7=8
4 + 2 + 5 - 9 = 4+2=6+6=11-9=2
8 + 5 + 2 -7 =8+5=13+2=15-7=8
10 + 2 + 7 - 12 =10+2=12+7=19-12=7
10 + 5 - 15 = 10+5=15-15=0
2 + 6 + 4 + 3 - 7 =2+6=8+4=12+3=15-7=8
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