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用简便方法计算97×22.

用简便方法计算97×22。 97*22 =100*22-3*22 =2200-66 =2134

32乘22加22乘63加44 =(32+63+2)×22 =97×22 =(100-3)×22 =2200-66 =2134提交回答

97.8×100×20-97.8

176-97-22简便计算 =176-100+3-22 =76-19 =57

66+97x22 =22×3+97×22 =22×(3+97) =22×100 =2200

1 2×7 + 1 7×12 + 1 12×17 + 1 17×22 +…+ 1 92×97 + 1 97×102 = 1 5 ×[( 1 2 - 1 7 )+( 1 7 - 1 12 )+( 1 12 - 1 17 )+( 1 17 - 1 22 )+…+( 1 92 - 1 97 )+( 1 97 - 1 102 )]= 1 5 ×[ 1 2 - 1 102 ]= 1 5 × 25 51 = 5 51 故答案为...

列式计算为 97×(89-78)+22 =97×11+22 =11×(97+2) =11×(100-1) =1100-11 =1089

999*7.78+333*6.66 =999*7.78+333*3*2.22 =999*7.78+999*2.22 =999*(7.78+2.22) =999*10 =9990 5.97*2.6+0.597*75-597*0....

97*47*2.2=10029.8立方厘米

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