14.5-(4.5-14.8)+5.2怎样简便运算
14.5-(4.5-14.8)+5.2怎样简便运算
14.5-(4.5-14.8)+5.2
解吵或:简便运算
=(14.5-4.5)+(14.8+5.2)
=10+20
=30
祝学习进步。
14.8+5.2÷4的简便运算
14.8+5.2÷4的简便运算
14.8+5.2÷4
=14.8+1.3
=16.1
直接计算
14.5÷2.5﹢1.45怎样简便运算
解:采用凑整分,
原式=14.5÷2.5+1.45
=14.5x4÷(2.5x4)+1.45
=58÷10+1.45
=5.8+1.45
=7.25
13.9一(3.5+7.85)+14.5怎样简便运算
=13.9-3.5-7.85+14.5
=13.9-7.85+(14.5-3.5)
=6.05+11
=17.05
4.5x[3.25-2.9]怎样简便运算
=4.5×0.35
=45×35×0.001
=(顷如40+5)(40-5)×0.001
=(40²-5²)×0.001
=(1600-25)×0.001
=1575×0.001
=1.575
4.5x2.4-6.32怎样简便运算?
4.5x2.4-6.32怎样简便运算?
4.5x2.4-6.32
=4.5×4×0.6-6.32
=18×0.6-6.32
=10.8-6.32
=4.42
5.2*19.9—0.52*100简便运算
5.2×19.9-0.52×100
=5.2×19.9-5.2×10
=5.2×(19.9-10)
=5.2×9.9
=5.2×(雀碰启9.9+0.1)-5.2×0.1
=5.2×10-5.2
=52-5.2
=46.8
40.25—(5.2 10.25)的简便运算
40.25—(5.2 +10.25)
=40.25-5.2-10.25
=40.25-10.25-5.2
=30-5.2
=24.8
14.8×6÷0.8可以简便运算吗
1.48×6÷0.8
=14.8×6÷8
=(3.7×4)×(3×2)÷8
=(3.7×3)×(4×2)÷8
=11.1×8÷8
=11.1
用简便运算,98.8一(14.8十8.8)
98.8-(14.8+8.8)
=98.8-8.8-14.8
=90-14.8
=75.2