197+107简便计算怎么做?
解:197+107等于( 304 )
∵已知需求出197+107等于多少
∴197 + 107
= (200 - 3)+(100 + 7)
= 200 - 3 + 100 + 7
= (200 + 100)+(-3 + 7)
= 300 + 4
= 304
答:197+107等于304
∵已知需求出197+107等于多少
∴197 + 107
= (200 - 3)+(100 + 7)
= 200 - 3 + 100 + 7
= (200 + 100)+(-3 + 7)
= 300 + 4
= 304
答:197+107等于304
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