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- 2026-04-27甲数是10.9.比乙数少1.15.甲.乙两数的和是( ).
- 2026-04-2778加上( )个0.01结果是1.
- 2026-04-27比2.97多0.6的数是( ),24.05比27.7少( ).
- 2026-04-27计算小数加减法时.应先把( )对齐.得数的末尾有0.一般要把0( ).
- 2026-04-27口算. (1)0.9+0.4= (5)9-0.7= (9)0.36+0.54= (2)1-0.26= (6)3.6+0.4= (10)1.29-0.29= (3)0.74+0.26= (7)0.57-
- 2026-04-27竖式计算 (1)50.47+26.65= (2)80-14.32=
- 2026-04-27脱式计算. (1)3.52+8.4+2.6 (2)42.24-6.24-3.76 (3)5.94+6.7+1.06+0.3 (4)4.92+3.27-4.92+3.73
- 2026-04-27口算下面各题. (1)4.2-0.7= (2)10-2.1= (3)6.4-0.34= (4)0.87+1.2= (5)0.68-0.48= (6)2.7+4.3= (7)5.14+1.86= (8)