簡便計算;15.36-3又7分之2-6又7分之5

簡便計算;15.36-3又7分之2-6又7分之5

15.36-(3+2/7)-(6+5/7)
=15.36-(3+6+2/7+5/7)
=15.36-10
=5.36

(3.5+(15-1.5))*7.6怎麼簡便計算? 急急!!!!!!!!!!!!!!!!!!!!!!!!!!1

(3.5+(15-1.5))*7.6
=(3.5-1.5+15)*7.6
=17*(7+0.6)
=119+10.2
=129.2

能簡便算的就簡便算 3/4+8.36+1/4+16/28【能簡便算麼

3/4+8.36+1/4+16/28
=3/4+1/4+8.36+4/7
=1+8.36+4/7
=9.36+4/7
=9+9/25+4/7
=9+63/175+100/175
=9又163/175

計算:10/3-28/15+【4.375*(3-9/7)】 12.5*(36-36/5)/3.6

10/3-28/15+(4.375*(3-9/7))=50/15-28/15+35/8*(21/7-9/7)=22/15+35/48*12/7=22/15+15/2=269/1512.5*(36-36/5)/3.6=25/2*(180/5-36/5)/(18/5)=25/2*144/5*5/18=100

17×36-650÷13,(405÷15-13)×16,910-(86+14×28,372-(17×14+42),(15+23)×32÷2,簡便運算 50分懸賞

17×36-650÷13
=17×4×9-50
=68×9-50
=612-50
=462
(405÷15-13)×16
=(405÷5÷3-13)×16
=(27-13)×16
=14×2×8
=224

簡便計算:45*28+15*16

45*28+15*16
=15*84+15*16
=15*(84+16)
=15*100
=1500

0.36層0.25簡便計算

0.36×0.25=0.9X0.4X0.25=0.9X0.1

1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的簡便計算怎麼做

拆開來做.7又5/6 = 7 + 5/60.125 = 1/8 所以 (4.125—4又1/8)= 04又5/6 = 4 + 5/6所以 【7又5/6+(4.125—4又1/8)—4又5/6】 = 7 + 5/6 + 0 - 4 - 5/6 = 31又2/3* 3 = 1*3 + 2/3 *3 = 3 + 2 = 5...

8×1.4×0.5×0.125簡便計算

8×1.4×0.5×0.125
=8×0.125×0.7×2×0.5
=1×0.7×1
=0.7

(2.5+0.125)*3.2簡便運算怎麼算?要全部過程! 可以告訴最後答案是8.4 快者再加5分

(2.5+0.125)*3.2
=2.5*3.2+0.125*3.2
=2.5*4*0.8+0.125*8*0.4
=10*0.8+1*0.4
=8+0.4
=8.4

5.32+2.06+19.4+1.84+7.68簡便計算

5.32+2.06+19.4+1.84+7.68
=5.32+7.68+2.06+1.84+19.4
=13+3.9+19.4=13+23.3=36.3

4/5÷(2/3×15/7)簡便計算

(2.5+1.25+0.075)×4簡便計算

(2.5+1.25+0.075)×4
=2.5×4+1.25×4+0.075×4
=10+5+0.3
=15.3

25分之23×4分之1+4分之1×25分之2 用簡便計算

25分之23×4分之1+4分之1×25分之2
=1/4(23/25+2/25)
=1/4*1
=1/4

2.5÷(1.25÷0.4)簡便計算

2.5÷(1.25÷0.4)
=2.5÷1.25×0.4
=2×0.4
=0.8

1.2÷0.25+1.3×4怎麼簡便計算?

1.2÷0.25+1.3×4
=1.2×4+1.3×4
=(1.2+1.3)×4
=2.5×4
=10

3.2×(25+1.25)簡便計算

3.2×(25+1.25)
=3.2×25+1.25×3.2
=4×0.8×25+1.25×8×0.4
=80+4
=84
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1.25*0.25*6.4*0.5簡便運算 要講講為什麼這樣做,原因

1.25*0.25*6.4*0.5
=1.25*0.25*0.8*2*4*0.5
=(1.25*0.8)*(0.25*4)*(0.5*2)
=1*1*1
=1

6.83-(1.25+2.83)怎麼簡便計算?

6.83-(1.25+2.83)
=6.83-1.25-2.83
=6.83-2.83-1.25
=4-1.25
=2.75

8×7.13×1.25的簡便運算

8×7.13×1.25
=8x1.25x7.13
=10x7.13
=71.3

7.85÷(1.25÷0.25)簡便計算, 能不能簡算?不能請說,能請發脫式計算的簡便計算謝謝!

=7.85÷(1.25x4)=7.85÷5=1.57

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