5x32x6简便计算
5x32x6怎么简便计算? -
解:5x32x6 =5×6×32 =30×32 =960
=x6+n-3x6+n ③3x2即为3·(x2) =(1-3)x6+n ④x6+n,与-3x6+n是同类项, =-2x6+n 合并时将系数进行运算(1-3)=-2 底数和指数不变。例4.计算:①(a2m)n ②(am+n)m ③(-x2yz3)3 ④-(ab)8 解:①(a2m)n 分析:①先确定是幂的乘方运算=a(2m)n ②用法则底数a 不变指数2m是什么。
解:5x32x6 =5×6×32 =30×32 =960
=x6+n-3x6+n ③3x2即为3·(x2) =(1-3)x6+n ④x6+n,与-3x6+n是同类项, =-2x6+n 合并时将系数进行运算(1-3)=-2 底数和指数不变。例4.计算:①(a2m)n ②(am+n)m ③(-x2yz3)3 ④-(ab)8 解:①(a2m)n 分析:①先确定是幂的乘方运算=a(2m)n ②用法则底数a 不变指数2m是什么。
简便计算:5×232×12 = 2320x6 = 13920
=(56+24)31 =80+31 =111 2、615+475+125 =615+(475+125)615+600 =1215 3、125×64 =125×8×8 =1000×8 =8000 4、89+101+111 =101+(89+111)101+200 =301 5、24+127+476+573 =(24+476)(127+573)500+700 =1200 6、400-273-127 =400-(273+127到此结束了?。
用简便方法计算下面各题 25x45x4 20x67x5 46x4x2 -
25x45x4 =25x4x45 =100x45 =4500 20x67x5 =20x5x67 =100x67 =6700 46x4x2 =(50-4)x2x4 =50x2x4-4x2x4 =100x4-8x4 =400-32 =368 125x4x8 =125x8x4 =1000x4 =4000
25x(40-4)怎么简便计算25x(40-4)25x40-25x4 =1000-100 =900 谢谢,请采纳25x(4十20)怎么简便计算原式=25x24 =25x(4x6)=(25x4)x6 =100x6 =600 或者=25x4+25x20 =100+500 =600 25x(24十12)简便计算25x(24十12)=25×(40-4)1000-100 =900 简便计算25x(32十8)=还有呢?
四则运算(要简便运算),化简求值题各20道 -
四则运算,简便运算,解方程各10题。四则运算6×4-18÷9 3×4÷2×3 50÷5-16÷4 240÷(20-5)(37-15)×(8+14) (850-100)÷3 180÷(72÷2) (24-8)×2 56-25+17 24-8×2 72-4×6÷3 三、简便计算。216+305 25×32 47+236+64 6×(15×9) 402+359 43+78+122+257 25×(26等会说。
(7)52.5x2.9+5.45 =5.25x29+5.25+0.2 =5.25×(29+1)0.2 =5.25×30+0.2 =157.5+0.3 =157.7 (8)0.92x15+0.08x15 =(0.92+0.08)×15 =1×15 =15 (9)0.72×1.25×2.5 =0.9×(0.8×1.25)×2.5 =0.9×1×2.5 =2.25 (10)400.6x7-还有呢?
急需小学四年级数学计算题,越多越好,谢谢!急急急! -
1.10-5.4-4.6= 2.6-(2.4+2.2)x6 26×39+61×26 356×9-56×9 52×76+47×76+76 134×56-134+45×134 小数乘除法简便计算专项练习1.25×32×0.25 4.7×1.25×1.6 2.5×(13×4)1.25×88 1.25×64×0.25 4.6×0.35+4.6×0.65 0.95×8.6-7.6×0有帮助请点赞。
132x6-12x16 12×16转换成6×2×16简便计算=132×6—6×2×16=132×6—6×32=(132—32)×6 提取共项6=100×6=600验算见截图,