WALT: We have been learning how to solve addition and subtraction problems in various strategies.
Problems.
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Strategy.
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Answer
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1)295+126=
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5+6=11
90+20=110
200+100=300
300+110+11=421
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=421
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2)9760-7531=
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I can’t take away 1ones from 0ones so I borrow a 10 from the 6tens. It makes 10 10-1=9
Since I borrow 1 a 10 from 6tens, I am left with 5tens so
50-30=20
700-500=200
9000-7000=2000
2000+200+20+9=2229
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=219.
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3)1266+1045=
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1000+1000=2000
200+0=200
60+40=100
6+5=11
2000+200+100+11=2311
| =2311 |
4)912-283=
4)912-283=
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I can not take away 3ones from 2ones so I borrow 1 ten from the 1 tens. It makes 12 12-3=9
Since I borrow 1 ten from 1 ten I have no more ten so I borrow 100 from the hundreds and it makes 100. 100-80=20.I have 8 hundred now and so
800-200=600
600+20+9=629
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=629
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5)314+127=
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300+100=400
10+20=30
4+7=11
400+30+11=441
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=441
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great maths strategies nehilofi.
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