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小数简便计算题100道

3.56+4.54+6.44+5.46 5.03-0.25-1.754.86+5.24-1.86 8.13+(1.87-0.5)23.7-1.6-3.7-8.4 87.4-(21.25+17.4) -8.7514.6-9.9 1.9+1.99+1.999 19.43-(6.72+1.43)2.69-1.35+3.31-2.65 17.28-3.86-6.14+2.725.25+3.76-2.76+4.75 4.5+5.5-4.5+5.521.53-(13.64-

懒得去找资料了,就将记得的列几例给你吧..1)2.8*1.5=1.4*3=4.2这是一类比较直观的简便计算方法.2)3.6*3.4=12.24这是一类这一类的特点是:首位相同,末位合1(如果是整数就是合10)简便算法是:以3.6*3.4为例3*(3+1)=12,0.6*0.4=0.

.5*0.07 = 6.3÷0.09 = 2.5*3.6 = 19.8÷3.3 = 5÷0.25 = 0.76÷0.4 = 2.36*0.22 = 2.8*4.58 = 3.57÷4.2 = 82.8÷ 36 = 45*2.46 = 3.6÷0.24 = 382.5÷45 = 6.4*5.48 = 13.42*4.73 = 9.65*8.12 = 7.23*1.2 = 6.3*12 = 2.14*8.3 = 4.9*1.12 = 21.98*2.31 = 0.24*28.

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 * 49/9 - 4/3 5. 8/9 * 15/36 + 1/27 6. 12* 5/6 2/9 *3 7. 8* 5/4 + 1/4 8. 6÷ 3/8 3/8 ÷6 9. 4/7 * 5/9 + 3/7 * 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 * 5/6 +

(1)2.64*1.7-2.64*0.7=2.64*(1.7-0.7)=2.64*1=2.64 (2)31.5*1.07-3.15*0.7=3.15*10.7-3.15*0.7=3.15*(10.7-0.7)=3.15*10=31.5 (3)2.7*5.7-2.7+5.3*2.7=2.7*(5.7-1+5.3)=2.7*10=27 (4)0.625÷0.125*0.8=(0.625*0.8)*8÷(0.128*8)=0.5*8÷1=4 (5)18.6*6

下面各题怎样算简便就怎样算.6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8

73.8-1.64-13.8-5.36 66.86-8.66-1.34 0.25*16.2*4 3.72*3.5+32313133353236313431303231363533e59b9ee7ad94313333656365646.28*3.5 36.8-3.9-6.1 2 5.48-(9.4-0.52) 4.8*7.8+78*0.52 3.6*102 6.4*0.25+3.6÷4 32+4.9-0.9 4.8-4.8*0.5 (1.25-

100道四年级简便运算练习题: 25*42*4 68*125*8 4*39*25 4*25+16*25 4*25*16*25 36*99 (25+15) *4 (25*15)*4 49*49+49*51 49*99+49 (68+32)*5 5*289*2 68+32*5

8.54÷0.7=12.26.84÷0.912=7.525.84÷1.7=15.299.6÷41.5=2.4220.5÷147=1.536.8÷16=2.31.25÷0.25=50.72÷3.6=0.21.62÷6=0.27

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