1. 直接写出得数。
$98÷7 =$ $500×6 =$ $420÷7 =$ $120÷6÷4 =$
$828÷4 =$ $49×3 =$ $810÷9 =$ $9×3 + 4 =$
$4×13 =$ $35÷7 =$ $4×197 ≈$ $4×60×3 =$
$57 + 18 =$ $6×19 =$ $208÷4 =$ $6×8 - 9 =$
$81 - 29 =$ $72×3 =$ $150÷6 =$ $120 - 75 + 48 =$
$123÷3 =$ $62×9 =$ $104×8 =$ $96÷(2×4) =$
$84÷6 =$ $51×6 =$ $231÷7 =$ $100÷5÷5 =$
$18×8 =$ $32×4 =$ $42×4 =$ $140÷2 + 98 =$
$98÷7 =$ $500×6 =$ $420÷7 =$ $120÷6÷4 =$
$828÷4 =$ $49×3 =$ $810÷9 =$ $9×3 + 4 =$
$4×13 =$ $35÷7 =$ $4×197 ≈$ $4×60×3 =$
$57 + 18 =$ $6×19 =$ $208÷4 =$ $6×8 - 9 =$
$81 - 29 =$ $72×3 =$ $150÷6 =$ $120 - 75 + 48 =$
$123÷3 =$ $62×9 =$ $104×8 =$ $96÷(2×4) =$
$84÷6 =$ $51×6 =$ $231÷7 =$ $100÷5÷5 =$
$18×8 =$ $32×4 =$ $42×4 =$ $140÷2 + 98 =$
答案
1. 14 3000 60 5
207 147 90 31
52 5 800 720
75 114 52 39
52 216 25 93
41 558 832 12
14 306 33 4
144 128 168 168
207 147 90 31
52 5 800 720
75 114 52 39
52 216 25 93
41 558 832 12
14 306 33 4
144 128 168 168
2. 计算下面各题。
$27×4 + 162$ $15×8 - 88$ $480÷(32÷4)$
$(730 - 50)÷4$ $(28 + 44)÷9$ $4×(79 + 18)$
$27×4 + 162$ $15×8 - 88$ $480÷(32÷4)$
$(730 - 50)÷4$ $(28 + 44)÷9$ $4×(79 + 18)$
答案
2. 270 32 60
170 8 388
170 8 388
如图,共有(

1
)条直线、(10
)条射线和(10
)条线段。如果把点 $C$ 去掉并从点 $C$ 处断开,那么共有(2
)条直线、(8
)条射线和(2
)条线段。答案
思维提升
1 10 10 2 8 2
1 10 10 2 8 2
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