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2.8×7.6+2.4×0.8用简便方法计算

8.5×7.6+2.4 =34x1.9+2.4 =68-3.4+2.4 =67

6.7+2.4×6 =6.7+2×6+0.4×6 =6.7+12+2.4 =18.7+2.4 =21.1

2.4×7.6+6.5×7.6+0.76×11 =7.6×(2.4+6.5+1.1) =7.6×10 =76 希望我的回答对您有帮助,有问题可以追问。 满意请及时采纳,谢谢!

二2.4X3X0.2十2.4X2.4 =2.4X0.6十2.4X2.4 =2.4X(0.6十2.4) =2.4X3 二7.2

7.6×2.4+6.5×7.6+7.6×7.6 =7.6×(2.4+6.5+7.6) =7.6×16.5 =125.4

8.5+7.6-8.5+2.4=(8.5-8.5)+(7.6-2.4)=5.2.

14.6x2.4+ 7.6 =35.04+7.6 =43.64 -------------------------------

2.4乘(7.2 减3.7)乘0.6 =2.4乘3.5乘0.6 =8.4乘0.6 =5.04

1.64+2.4+8.36+7.6 =(1.64+8.36)+(2.4+7.6) =10+10 =20

应该是(0.56+0.76)×2.4

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