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99x32的简便计算
7/50×101-7/50用有
简便计算
?
答:
7/20×
99
+7/20 =7/20×(99+1)=7/20×100 =35 7/50×101-7/50 =7/50×(101-1)=7/50×100 =14 0.125×2.5×32 =0.125×2.5×4×8 =(0.125×8)×(2.5×4)=1×10 =10 0.25×72×4 =0.25×4×72 =1×72 =72 0.125×72 =0.125×8×9 =1×9 =9...
75加上360除以(20—5)
简便计算
?
答:
75+360÷(20-5)
简便计算
吐下:=75+360÷(20-5)=75+360÷15 =75+360÷3÷5 =75+120÷5 =75+24 =
99
用
简便
方法
计算
. 4300÷4÷25 &nbs...
答:
(1)4300÷4÷25=4300÷(4×25)=4300÷100=43;(2)1456-237-763=1456-(237+763)=1456-1000=456;(3)125×32×25 =125×8×4×25=(125×8)×(4×25)=1000×100=100000; (4)
99
×999=99×(1000-1)=99×1000-99×1=99000-99=98901;(5)89×99+89=89×(99+1...
1X2X3……X100=? 有什么
简便
方法吗?
答:
x(31
x32
x33x34x35x36x37x38x39x40)x(41x42x43x44x45x46x47x48x49x50)x(51x52x53x4x55x56x57x58x59x60)x(61x62x63x64x65x66x67x68x69x70)x(71x72x73x74x75x76x77x78x79x80)(81x82x83x84x85x86x87x88x89x90)x(90x91x92x93x94x95x96x97x98x
99
x100)...
80个
简便
,脱式
计算
答:
第一种 (300+6)x12 25x(4+8)125x(35+8)(13+24)x8 第二种 84x101 504x25 78x102 25x204 第三种
99x
64 99x16 638x99 999x99 第四种
99X
13+13 25+199X25 32X16+14
X32
78X4+78X3+78X3 第五种 125X32X8 25
X32
X125 88X125 72X125 第六种 3600÷25÷4 8100÷4÷75 3000÷...
谁有小学四年级上册数学的脱式
计算
,麻烦告诉我,谢谢!~
答:
答案:① 4.02x1.3+40.2x0.87 =4.02 x(1.3 +8.7)=4.02 x10 =40.2 ② 0.8
x32
+3.2x2 = (0.8+0.2)
x32
=1x32 =32 ③
99
x12+1.2x10 =(99+1)x12 =100x12 =1200 ④ 87.4x36-3.6x74 =3.6x(874-74)=3.6x800 = 2880 ⑤ 8.3x4+0.4x17 =4x(8....
怎样
简便
就怎样算。 9.8+
99x
9.8 1.25x88 4.65
x32
+2.5x46
答:
回答:9.8×(1+
99
)=9.8×100=980
...18+19+20-21···-96+97+98-
99
等于多少?(用
简便
方法)
答:
1+2-3+4+5-6+7+8-9+10+11-12+13+14-15+16+17-18+19+20-21···-96+97+98-
99
=(1+2-3)+(4+5-6)+(7+8-9)+(10+11-12)+...-96+(97+98-99)=3+6+9+...+96 =(3+96)
x32
/2 =1584
如何
计算
两个数的积?
答:
1x2x3x4x5x6x7x8x9x10x11x12x13x14x15x16x17x18x19x20x21x22x23x24x25x26x27x28x29x30x31
x32
x33x34x35x36x37x38x39x40x41x42x43x44x45x46x47x48x49x50x51x52x53x4x55x56x57x58x59x60x61x62x63x64x65x66x67x68x69x70x71x72x73x74x75x76x77x78x79x80x81x82x83x84x85x86x87x8...
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<涓婁竴椤
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