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- 2026-04-2774+3.68+2.26 =15.74+2.26 +3.68运用了加法的( ).
- 2026-04-27怎样简便就怎样算. (1)45×97+45×3 (2)483-154-46 (3)68×103 (4)9.63-2.74+0.37-2.26 (6)125×16×5
- 2026-04-27在方框里填上合适的数.(1)6.7+4.95+3.3=6.7+□+4.95+3.25=□+(3)29.38-4.71-3.29=29.38-(4)12.32+54.67+33.33=□+
- 2026-04-27用简便方法计算. (1)16.5+4.2+3.5 (2)72.6-18.49-1.51 (3)10.7+9.9
- 2026-04-2731+6.59+3.41+9.69=+是应用( )律和( )律进行简便计算的.
- 2026-04-2746+5.7+4.3=15.46+是运用了 [ ]A．乘法结合律 B．加法交换律 C．加法结合律
- 2026-04-27用简便方法计算. (1)4.35+8.6+15.65+1.4 (2)19.32-5.56-3.44 (4)5.49+2.68-3.49 (5)6.27+3.83+1.73 (6)8.4+3.5-8.4
- 2026-04-27下面各题怎么简便就怎么计算. (1)9.12+4.5+0.88 (2)8.43+2.97+0.03 (3)10-2.75-0.25 (4)4.9+4.9-0.9-0.9 (5)5.6+2.7-3.6