Question

3.3×5+6×4.4×2的简便运算

Answer 1

3.3×5+6×4.4×2的简便运算

3.3×5+6×4.4×2
=1.1x3x5+6x1.1x4x2
=1.1x（15+48）
=1.1x63
=69.3

3.3x5+6x4.4x2脱式简便运算

解：原式=1.1x3x5+1.1x4x12
=1.1x15+1.1x28
=1.1x（15+28）
=（1+0.1）x43
=1x43+0.1x43
=43+4.3
=47.3
分析：考察拆分法和结合律的综合运用

3.3*4.4+2.8*6.6简便运算

简便运算
3.3*4.4+2.8*6.6
=3.3*4.4+5.6*3.3
=3.3*(4.4+5.6)
=3.3*10
=33

10.62减三点5+6点五的简便运算

10.62 -3.5+6.5
=10.62+3
=13.62

9.9除以2.22除以3.3乘4.4简便运算

【解答】解:(1)1.1+2.2+3.3+4.4+5.5+6.6+7.7+8.8+9.9 =(1.1+9.9)+(2.2+8.8)+(3.3+7.7)+(4.4+6.6)+5.5 =11+11+11+11+5.5

80-1.1-2.2-3.3-4.4-5.5-6.6-7.7-8.8-9.9简便运算

80-(1.1+9.9+2.2+8.8+3.3+7.7+4.4+6.6+5.5)
=80-(11+11+11+11+5.5)
=80-(11×5+5.5)
=80-60.5
=19.5

4.4ⅹ0.25x6简便运算

4.4ⅹ0.25x6
=4x1.1x2.5x6
=10x1.1x6
=66

简便运算。8.8x7.8+3.3x4.4，急

8.8x7.8+3.3x4.4，
=4.4x（15.6+3.3）
=4.4x18.9
=4.4x(20-1.1)
=4.4x20-4.4x1.1
=88-4.84
=83.16

3.3乘79加3.3乘17减3.3乘6简便运算

3.3*79+3.3*17+3.3*6=
3.3*（79+17+6）=
3.3*102=
3.3*100+3.3*2=
330+6.6=
336.6

4.62÷3.3简便运算

4.62÷3.3简便运算
=4.62÷3÷1.1
=1.54÷1.1
=1.4