脱式计算,能简算的要简算0 252

2021-03-17 06:58:48 字数 1965 阅读 7516

1楼:甜子

(1)0.25×[(2.8+4.4)÷1.2],=0.25×[7.2÷1.2],

=0.25×6,

=1.5;

(2)3.7×9.16+6.3×9.16,=(3.7+6.3)×9.16,

=10×9.16,

=91.6;

(3)[32-(1.95-1.95)]÷1.6,=[32-0]÷1.6,

=32÷1.6,

=20;

(4)5.7×10.1,

=5.7×(10+0.1),

=5.7×10+5.7×0.1,

=57+0.57,

=57.57.

脱式计算,能简算的要简算. 0.25×[(2.8+4.4)÷1.2] 3.7×

2楼:林沮坟

(1)0.25×[(2.8+4.4)÷1.2],=0.25×[7.2÷1.2],

=0.25×6,

=1.5;

(2)3.7×9.16+6.3×9.16,=(3.7+6.3)×9.16,

=10×9.16,

=91.6;

(3)[32-(1.95-1.95)]÷1.6,=[32-0]÷1.6,

=32÷1.6,

=20;

(4)5.7×10.1,

=5.7×(10+0.1),

=5.7×10+5.7×0.1,

=57+0.57,

=57.57.

脱式计算(能简算的要简算)1.25×3.2×8 ...

3楼:你猜

(1)1.25×3.2×8

=1.25×8×3.2

=10×3.2

=32;

(2)0.45×6.2+3.8×0.45

=0.45×(6.2+3.8)

=0.45×10

=4.5;

(3)2.7×9.9

=2.7×(10-0.1)

=2.7×10-2.7×0.1

=27-0.27

=26.73;

(4)15×10.2

=15×(10+0.2)

=15×10+15×0.2

=150+3

=153;

(5)0.25×[(2.8+4.4)÷1.2]=0.25×[7.2÷1.2]

=0.25×6

=1.5;

(6)[32-(1.95-1.95)]÷1.6=[32-0]÷1.6

=32÷1.6

=20.

脱式计算能简便的要简便 4.92÷4.1÷0.3 2.8x4+7.2÷0.25

4楼:匿名用户

4.92÷4.1÷0.3

=1.2÷0.3=4

脱式计算(能简算的要简算) ⑴1/4÷(2/3-3/2×1/3) ⑵24×(1/6+3/8+7/

5楼:昨夜星辰吉日

⑴1/4÷(2/3-3/2×1/3)

=1/4÷(2/3-1/2)=1/4÷(4/6-3/6)=1/4÷1/6=1/4x6=6/4=3/2;

⑵24×(1/6+3/8+7/12)=24x1/6+24x3/8+24x7/12=4+9+14=27;

⑶1/8×58+1/8×41+1/8=1/8x(58+41+1)=1/8x100=100/8=12.5.

6楼:

⑴1/4÷(2/3-3/2×1/3)=3/2

⑵24×(1/6+3/8+7/12)=27

⑶1/8×58+1/8×41+1/8=25/2

7楼:匿名用户

(1)1/4÷(2/3一3/2×1/3)=1/4÷(4/6一3/6)=1/4×6/1=3/2

脱式计算:能简算的要简算。,脱式计算:一、能简算的要简算。③4/7×5/9+3/7×5/9 = = = =

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