| 3 |
| 7 |
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 4 |
=
| 3 |
| 7 |
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 4 |
=（
| 3 |
| 7 |
| 4 |
| 7 |
| 3 |
| 4 |
=
| 3 |
| 4 |
改正：
| 3 |
| 7 |
| 3 |
| 4 |
| 4 |
| 7 |
| 3 |
| 4 |
=
| 3 |
| 7 |
| 4 |
| 3 |
| 4 |
| 7 |
| 4 |
| 3 |
=（
| 3 |
| 7 |
| 4 |
| 7 |
| 4 |
| 3 |
=1×
| 4 |
| 3 |
=
| 4 |
| 3 |
查询谷 - www.chaxungu.com
最新文章
- 2026-04-27先判断.再改正37÷34+47÷34=37×34+47×34=(37+47)×34=34 ．
- 2026-04-27×□=28×
- 2026-04-27÷÷34=×(17×).利用了乘法的 [ ]A．交换律 B．分配律 C．结合律
- 2026-04-27用简便方法计算. (1)18×25×40 (2)46×13+54×13 ×8 (4)72×125
- 2026-04-27运用了加法交换律的有 [ ]A.476+246=246+476B.46+54=75+25C.563+248+362=563+362+248D.23+49+51= 49+53+21
- 2026-04-27用简便方法计算. (1)174+56+126 (2)87×48+13×48 (3)24.4+9.62+13.38+5.6 (4)6.94-4.56+43.06
- 2026-04-27不符合乘法交换律的是 [ ]A．a×b=b×a B．3×4×5=3×5×4 C．a×b=b×c
- 2026-04-27142×4×2的积与142×的积相等.