题目内容
| 计算17-6=（ ） 7+8=（ ） A.10 14 B.11 15 C.12 15 D.10 16 |
试题答案
B
相关题目
计算下面各题．
13.4×5.6×2.5
6.75×0.12+15.73
3.25×7.4-8.5
1 8.7×3.3-15.2×2.6
45.2-14.36+17.6
9.43×61+24.77．
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13.4×5.6×2.5
6.75×0.12+15.73
3.25×7.4-8.5
1 8.7×3.3-15.2×2.6
45.2-14.36+17.6
9.43×61+24.77．
分拆法计算．
2×38
6×17
91×5
701×6
4×214
3×579
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2×38
=2×30+2×8
=2×30+2×8
=60+16
=60+16
=76
=76
6×17
=6×10+6×7
=6×10+6×7
=60+42
=60+42
=102
=102
91×5
=90×5+1×5
=90×5+1×5
=450+5
=450+5
=455
=455
701×6
=700×6+1×6
=700×6+1×6
=4200+6
=4200+6
=4206
=4206
4×214
=4×200+4×10+4×4
=4×200+4×10+4×4
=800+40+16
=800+40+16
=856
=856
3×579
=3×500+3×70+3×9
=3×500+3×70+3×9
=1500+210+27
=1500+210+27
=1737
=1737
．