3078+295简便计算

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3078+295简便计算
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3078+295简便计算
3078+295简便计算

3078+295简便计算
3078+295
=(3100-22)+(300-5)
=3100-22+300-5
=(3100+300)-(22+5)
=3400-27
=3373
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4080-2+300-5 = 4380-7 = 7373

3078+295
=3078+(300-5)
=(3078+300)-5
=3378-5
=3373

3078+295
=3078+300-5
=3078-5+300
=3073+300
=3373.

3078+295
=3078+300-5
=3378-5
=3373

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