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- 2026-04-27一个长方形跑道.长69.5米.宽2.5米.这个跑道的面积是多少平方米?
- 2026-04-27竖式计算. (1)2.81×3.6= (2)1.3÷5.2= (3)4.08×3.25=
- 2026-04-27直接写得数. 5×1.8= 0.8×1.5= 0.25×4= 1-0.63= 1.7×0.9= 4.6×0.5=
- 2026-04-27计算. 3.02×21= 0.26×35= 0.125×18= 15.4×3.5= 7.25×4.3= 13.6×5.4= 9.25×26= 0.52×2.3=
- 2026-04-2718个0.25相加.和是多少?
- 2026-04-271+56= 2-12= 47-328= 1.2×0.01= 98-47-37= 12÷25= 6×23= 23×38= 56÷6= 3÷4+14=
- 2026-04-27248×1.26的积里有 位小数．
- 2026-04-272×5.2÷5.2×5.2=( )A．27.04B．1C．37.04