脱式计算:
(7.5+2.5)×0.25 475÷25÷4 5.4÷18+12
999×1999+999 2.25×1.8+17.5×0.18 [1﹣(+)]×36.
能简算的用简便方法算.
2.5×3.4×0.4 8.24﹣2.68﹣1.32 6.5×2.3+6.5×6.7+6.5
7.8÷0.25÷4 1.37×99 2.5×32×1.25.
能简算的用简便方法算.
9.28+1.82÷0.7 (71.2﹣71.2×0.9)÷0.25 6.5×2.3+6.5×6.7+6.5
7.8÷0.25÷4 1.37×99+1.37 4.8×6.2﹣12.4.
怎样算简便就怎样算.
(1)4.32+5.43+6.68 (2)15.17﹣6.8﹣3.2 (3)34.82﹣(4.82+15.2)
(4)15.27+4.72﹣5.28 (5)4.02﹣3.5+0.98 (6)5.8﹣4.5+5.8﹣4.5.
能简算的要简算.
15.6﹣8.9+5.6 7.02+3.8+3.98+2.2 68.4﹣(4.7+8.4)
35.8﹣(40﹣44.2) 100﹣13.72﹣36.82 47.35+16.88﹣7.35.
怎样简便就怎样计算
0.75×4×0.25×4 9.6+9.6×99 15.58÷8.2﹣0.72 2.8×3.6+1.4×2.8 6.3×10.1.
怎样简便就怎样算.
10.8﹣10.8÷3.6×1.5 12.5×2.5×8
84.7×0.35+0.65×84.7 2.43×99+2.43.
递等式计算(能简便的要简便计算)
1.25×3.2×0.8 14.5×102 4.7×4.7+4.7+4.7×4.3
9.6÷0.4×0.25 8.68﹣8.68÷0.56×0.5 29.7÷(5.85÷0.65)
21.73+(7.02﹣1.73)+1.98 312﹣12×16+24 40﹣4.72+5.28
57×39﹣39+39×44 9000÷36 30﹣[17.8+(6.2+38÷10)].
试题篮
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