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口算速算.7×314=23÷2=1−27=6÷37=56×12=14−16=815×56=514÷17=(35−35)×35=
题目详情
口算速算. 7×
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6÷
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口算速算. 7×
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6÷
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7×
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14 |
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7×
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7×
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▼优质解答
答案和解析
7×
=
÷2=
1−
=
7×
=
7×
=
7×
3 3 314 14 14=
3 3 32 2 2
÷2=
÷2=
2 2 23 3 3÷2=
1 1 13 3 3 1−
=
1−
=
1−
2 2 27 7 7=
5 5 57 7 7 6÷
=14
×12=10
−
=
6÷
=14 6÷
=146÷
3 3 37 7 7=14
×12=10
×12=10
5 5 56 6 6×12=10
−
=
−
=
1 1 14 4 4−
1 1 16 6 6=
1 1 112 12 12
×
=
÷
=
(
−
)×
=0.
×
=
×
=
8 8 815 15 15×
5 5 56 6 6=
4 4 49 9 9
÷
=
÷
=
5 5 514 14 14÷
1 1 17 7 7=
5 5 52 2 2 (
−
)×
=0. (
−
)×
=0.(
3 3 35 5 5−
3 3 35 5 5)×
3 3 35 5 5=0.
7×
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