苏教版六年级下册数学课本第89页总复习答案
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1: 55 11.85 3.2 1.08 5/6 2
2: =4×25×0.27 =100×0.27 =27
=3.8÷﹙99+1﹚ =3.8×100 =380
560÷16÷5 =560÷﹙16×5﹚ =560÷80 =7
﹙8+4/9﹚÷4 =8÷4+4/9÷4 =2+1/9 1 = 2 ---- 9
2/5+3/7+3/5+4/7 = ﹙2/5+3/5﹚+﹙3/7+4/7﹚ =1+1 =2
=7/16×﹙9－7﹚ =7/16×2 =7/8
3： =0.4×30 =12
=﹙3.8－0.9﹚×0.5 =2.9×0.5 =1.45
=1/4×4×4×4 =16
=8/13×1/7+1/7×5/13 =1/7×﹙8/13+5/13﹚ =1/7×1 =1/7
4： 14×24×25÷28÷30 =10 |
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