(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
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(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
=(10/3×19/10+39/2×2/9)/(62/75-12/75)÷(105/30+140/30+64/30)/[0.5×(21/20+82/20)
=(19/3+13/3)/(50/75)÷(309/30)/(103/40)
=32/3×3/2÷(309/30×40/103)
=16÷4
=4
0.3
10/3×1.9+19.5÷9/2÷62/75-0.16的计算过程
(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)
有赏有赏,快来解题.(10/3×1.9+19.5÷9/2)/(62/75-0.16)÷(3.5+14/3+32/15)/[0.5×(21/20+4.1)注意:它本是一个分数,中间那个除号的左右都是分数,不要挨着挨着算.
[ 1/2-(3/4-3/5]÷7/10 27.4-52.8÷(1.9+2·1) 9.25*9·9+0·925能简算吗?
[0.9×19+(4.8-3.8)÷10/19]÷(2+9/10-1.9) 分数加减乘除法
1÷(1÷2)÷(2÷3)÷(3÷4)÷.÷(8÷9)÷(9÷10)=?
(10-9/2÷3)×2/5
(能简算的简算)(9) 1011 ×( 8分之3 + ) (10) 130 ÷[(34 - 25)×821 ](11)205×32-656 (12)(20-1.25×0.8)÷1.9
简便方法计算 1、 3又2分之1÷4﹢360×25%﹢0.25×36.5 2、﹙7.25×40%﹢2.75×5分之2﹚÷20%3、 [1.9+19%×﹙4.8-3又5分之4﹚]÷﹙2又10分之9-190%﹚
计算下面各题,能简算的要简算 :(1)63*10.1-63*0.1(2)4.2*99+4.2(3)35÷(0.35*2)(4)3.14*1.9+31.4*0.81(5)7.3*10.2-1.46(6)(4.8+6.4)÷8(7)40.5÷0.81*1.05(8)97.5÷0.39-136.7(9)15.6*13.1-15.6*3.1(10
3.2÷0.01= 6.8-10.8= 51×39≈ 1÷ ×3= 8×125%= 7.2+8= 10.8÷1.08×0= (0.25+ )÷10=3/7-3/5+4/7+0.4 (6.9-3.15)÷0.3×0.8 2.5×(1.9+1.9+1.9+1.9) 3、 解方程或解比例(6分)2Ⅹ+2.7=24.7 Ⅹ&sh
小升初难度的数学计算题(简算).一..4.85x0.17+0.485x8.3二.(0.86+0.86+0.86+0.86)x25三.125÷(50÷8)四.7.6x二分之一÷[1.9—1.9x(1.9—1.9)]五.9999x7+1111x37六.19.98x37—199.8x1.9+1998x0.82七.1—1÷2—1÷3—六分
10÷9÷8÷7÷6÷5÷4÷3÷2 添括号 结果为整数 尽可能小
(3/4 + 1/5) * 10/3 ÷ 9/2
-4/3x(0.5-2/3)÷10/9
-5/3×(0.5-2/3)÷10/9
5道简便运算练习题 1.9又2/5-(3又3/7+0.4)=2.6.25-40÷16*2.5=3.9204÷13+19*107=4.1.8*1/4+32*2.5%-1÷4=5.1*3*5+2*6*10+3*9*15+4*12*20 ←分数线→ = 1*2*3+2*4*6+3*6*9+4*8*12
(1)1.9×130%= (2)0.3×100%=(3)16×100%=(4)15×18.0%= (5)9×112%= (6)5×24%=(6)1.8÷36%= (7)0.3+120%= (8)0.798÷21%= (7)1-68%= (8)25%+3.72= (9)37.2÷6.2%= (10)180%÷9= (11)120