如题所述
第1个回答 2016-02-20
请用简便方法计算下列各题
0.25×0.28 0.125×3.2×2.5 35×40.2
0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5
3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73
3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6
4.9÷3.5 7÷0.25÷4 7÷0.125 ÷8
7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 7.325-(5.325+1.7)
3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5
7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)
3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8
63.4÷2.5÷0.4 4.9÷1.4 3.9÷（1.3×5）
（7.7＋1.54）÷0.7 2.5×2.4 2.7÷45
0.35×1.25×2×0.8 32.4×0.9＋0.1×32.4 15÷0.25
28.6×101－28.6 0.86×15.7－0.86×14.7 2.4×102
14－7.32－2.68 2.64＋8.67＋7.36＋11.33 2.31×1.2×0.5
（2.5－0.25）×0.4 9.16×1.5－0.5×9.16 3.6－3.6×0.5
7.6×0.8＋0.2×7.6 0.85×199 0.25×8.5×4
0.25×36 0.125×3.2×2.5 35×40.2
(6)8.88×1.25
(7)34.7×0.25
(8)238÷1.25
(9)0.25×12.5×3.2
(10)124.68+324.68+524.68+724.68+924.68
(11)5795.5795÷5.7957×579.5
(12)1990×198.9-1989×198.8
(13)2.25×0.16+264×0.0225+5.2×2.25+0.225×20
(14)(1+0.28+0.84) ×(0.28+0.84+0.66)-(1+0.28+0.84+0.66) ×(0.28+0.84)
(15)4.82×0.59+0.41×1.59-0.323×5.9
(16)0.125×0.25×32
(17)16×4.5
(18)0.25×1.25×22.4
(19)0.9+0.99+0.999+0.9999+0.99999
(20)(72×357+357×28)÷(51×7×4)
(21)98989898×99999999÷1010101÷11111111
(22)4.8×(11.03-15.6÷7.5)
(23)(67.8+9.48) ÷0.96-2.58×30.05
(24)[1.7+1.7×(5.8-2.8)]+(1.75÷1.4)
(25)3.04×8.7-3.04×2.9+5.8×6.96
(26)(0.1+0.2+0.3+0.4+…+1)÷5.5
(27)3.14×6.5+4.5×3.14-3.14
(28)1240×3.8+124×51+1.24×1400+760×9.6+0.76×700
(29)1÷(2÷3) ÷(3÷4) ÷(4÷5) ÷…÷(1999÷2000)
(30)1-2+3-4+5-6+…-98+99-100+100
0.25×0.28 0.125×3.2×2.5 35×40.2
0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5
3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73
3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6
4.9÷3.5 7÷0.25÷4 7÷0.125 ÷8
7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 7.325-(5.325+1.7)
3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5
7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)
3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8
63.4÷2.5÷0.4 4.9÷1.4 3.9÷（1.3×5）
（7.7＋1.54）÷0.7 2.5×2.4 2.7÷45
0.35×1.25×2×0.8 32.4×0.9＋0.1×32.4 15÷0.25
28.6×101－28.6 0.86×15.7－0.86×14.7 2.4×102
14－7.32－2.68 2.64＋8.67＋7.36＋11.33 2.31×1.2×0.5
（2.5－0.25）×0.4 9.16×1.5－0.5×9.16 3.6－3.6×0.5
7.6×0.8＋0.2×7.6 0.85×199 0.25×8.5×4
0.25×36 0.125×3.2×2.5 35×40.2
(6)8.88×1.25
(7)34.7×0.25
(8)238÷1.25
(9)0.25×12.5×3.2
(10)124.68+324.68+524.68+724.68+924.68
(11)5795.5795÷5.7957×579.5
(12)1990×198.9-1989×198.8
(13)2.25×0.16+264×0.0225+5.2×2.25+0.225×20
(14)(1+0.28+0.84) ×(0.28+0.84+0.66)-(1+0.28+0.84+0.66) ×(0.28+0.84)
(15)4.82×0.59+0.41×1.59-0.323×5.9
(16)0.125×0.25×32
(17)16×4.5
(18)0.25×1.25×22.4
(19)0.9+0.99+0.999+0.9999+0.99999
(20)(72×357+357×28)÷(51×7×4)
(21)98989898×99999999÷1010101÷11111111
(22)4.8×(11.03-15.6÷7.5)
(23)(67.8+9.48) ÷0.96-2.58×30.05
(24)[1.7+1.7×(5.8-2.8)]+(1.75÷1.4)
(25)3.04×8.7-3.04×2.9+5.8×6.96
(26)(0.1+0.2+0.3+0.4+…+1)÷5.5
(27)3.14×6.5+4.5×3.14-3.14
(28)1240×3.8+124×51+1.24×1400+760×9.6+0.76×700
(29)1÷(2÷3) ÷(3÷4) ÷(4÷5) ÷…÷(1999÷2000)
(30)1-2+3-4+5-6+…-98+99-100+100
