19.82―6.57―3.43 4.6+325+635+5.4 438+2.25+558+734 9.63÷2.5÷4 6÷0.25 235 - 135÷18 35 ×153 – 0.6×53 (45 +14 )÷73 +710 10 - 719 - 1219 + 119 25×13 ÷52 ×310 13.09-8.12-4.88 12×103-4500÷75 18 ×[1...
1. 67 ×21 +18 ×21 + 85 ×79 2. 375 ×480 + 6250 ×48 3. 321 ×81 + 321 ×19 4. 222222 ×999999 5. 333333 ×333333 6. 654321 ×909090 +654321 ×90909 7. 34 ×3535 -35 ×3434 8. 345345 ÷15015 9. 75 ×45 + 17 ×25 10. (48 ×75 ×81)÷(24 ...
六年级简便运算题大全1000题带答案部分如下:1、0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=1000。2、1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5。3、9123-(123+8.8)=9123-123-8.8=9000-8.8=91.2。4、1.24×8.3+8.3×1.76=8.3×(1.24+1....
(1)2.×1.7-2.×0.7 =2.×(1.7-0.7)=2.×1 =2. (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÷0.12...
0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65)
4.1×0.8-0.2= 9.9×1.4+0.6= 6.4×2.4+3.6= 12.48-4×9.7= 9.8×1.3-0.3= 4.8×9.1-0.5= 2.9+0.6×7.5= 4.2×1.8-0.1= 8.6×6.5+6.4= 5.59-3×4.3= 0.2×5.6+2.5= 3.053-0.1×5.3= 9.4×8.4+5.8= 0.5×4.6+7.1= ...
小数简便运算练习 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98 0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55...
六年级15道简便计算 一、口算下面各题。(23分) 10-2.65= 0.9×0.08= 528-349= 6+14.4= 24÷0.04= 12.34-2.3= 0÷3.8= 0.77+0.33= 7÷1.4= 67.5+0.25=7.2÷8×4= 5-1.4-1.6= 400÷125÷8= 1.9×4×0.5= 80×0.125= 3× = 6 6= 2 -( + )= 10 2= 3.2×7÷3.2×7= ( - )×12=...
2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 )8.7/8 + ( 1/8 + 1/9 )9.9 × 5/6 + 5/6 10.3/4 × 8/9 - 1/3 11.7 × 5/49 ...
解析:运用提取公因数的方法,公式:ac+ab=a(b+c),提取公因数2.5,1.2和0.8相加正好凑整数,使得运算简便。1.2×2.5+0.8×2.5 =(1.2+0.8)×2.5 =2×2.5 =5 5、2.96×40 解析:此题先利用乘法分配律,把2.96×40转换成29.6x4,再利用乘法结合律来简便计算。2.96×40 ...