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求四年级上册数学脱式计算(要简便)题目,200道和...

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四年级两位数乘一位数 (1) 94 × 8 = (2) 57 × 6 = (3) 9 × 67 = (4) 26 × 9 = (5) 41 × 9 = (6) 57 × 3 = (7) 7 × 79 = (8) 62 × 5 = (9) 21 × 1 = (10) 3 × 57 = (11) 5 × 84 = (12) 8 × 26 = (13) 5 × 67 = (14) 37 × 4 = (15) 8 × 98 = (16) ...

3820-980+728

25×1/4加25×0.25 1.999减1加0.001 99×0.36529587 OK

45.6×9.9 =45.6×(10-0.1) =45.6×10-4.56 =456-4.56 =4551.44 45.6-0.99 =45.6-1+0.01 =44.6+0.01 =44.61 23.5×12.5×0.08 =23.5×(12.5×0.08) =23.5×1 =23.5 0.623×2.4+6.23×0.76 =6.23×0.24+6.23×0.76 =6.23×(0.24+0.76) =6.23×1 =6.23

1.2+9=10.2 5.43-3.06=2.37 3+1.2=4.2 0.12+5=5.12 1.2+1.8+1.4=4.4 6.2+16+3.8=26 14-0.6=13.4 20.3-8=12.3 50-1.5+4= 53.5 175-0.56=174.44 2.08+11=13.089 0.4+20= 20.4 2.5+67+7.5=77 4.5-3=1.5 25-0.38=...

http://zhidao.baidu.com/question/170557390.html虽然有点散,不过凑一凑就差不多了 http://zhidao.baidu.com/question/54098321.html

第一组A、列竖式计算: (1)350÷60 (2)780÷26 (3)66×23 (4)895÷35 (5)378÷42 B、混合运算: (1)480-180+60 (2)480-(180+60)(3)360÷40×9 (4)360÷(40×9) (5)90-40×2 第二组A、列竖式计算: (1)614÷80 (2)786÷23 ...

1、 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 2、1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 3、1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 4、4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100=48 5、2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8 6、3/4-(3/...

你把题目发出来,我帮你。我是小学数学老师

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