四年级两位数脱式计算 9.25乘以425 4.25乘以0.75脱式计算

9.25乘以425 4.25乘以0.75脱式计算  

9.25乘以425 4.25乘以0.75脱式计算

9.25*4.25+4.25*0.75
＝4.25*（9.25+0.75）
＝4.25*10
＝42.5

6.26乘以7.5 0.75乘以3.74脱式计算

6.26乘以7.5 0.75乘以37.4脱式计算
6.26乘以7.5 0.75乘以37.4
=7.5*（6.26+3.74）
=7.5*10
=75

3000乘以2.67%乘以5脱式计算

=3000×2.67÷100×5
=80.1×5
=400.5

2.87乘以0.5乘以6,脱式计算

2.87x0.5x6
=2.87x3
=8.61
谢谢，请采纳

2.45乘以0.6乘以2.8用脱式计算

2.45乘以0.6乘以2.8用脱式计算
2.45乘以0.6乘以2.8
=1.47*2.8
=4.116

4.6乘以3.7 54乘以0.37的脱式计算

4.6x3.7+54x0.37
=46x0.37+54x0.37
=（46+54）x0.37
=100x0.37
=37
望采纳

脱式计算：0.65乘以6.4一0.65乘以5.4

0.65

脱式计算9999乘以2222加3333乘以3334

解：
9999乘以2222加3333乘以3334
=3333×3×2222+3333×3334
=3333×6666+3333×3334
=3333×（6666+3334）
=3333×10000
=33330000

345加18乘以(33乘以27)脱式计算

345+18x(33+27)
=345+18x60
=345+1080
=1425
谢谢，请采纳