(1)4.89×0.5×2 (2)20.16÷7.2+6.8 (3)4.5×2.7+4.5×5.3
1个回答
(1)原式=4.89×1
=4.89 (2)原式=2.8+6.8
=9.6 (3)原式=4.5×(2.7+5.3)
=36
相关问题
5×3= 4×3= 2×9= 7×2= 18÷6= 15÷5 40÷5= 21÷7= 4×4= 8×4= 4×7= 5×
分数混合运算,(1)3/11÷(3/4×3/11)(2)6/5×2/3-2/7÷7/8(3)5/8×4×1/5(4)3/
①36×2/7×5/72×43②(7/8+7/16)÷7/16③6/7×3/4+1/4×6/7
2.5×5= 10+0.4= 2.5×0.4= 7.1×0.2= 1÷0.1= 3.6÷0.4= 0.2×3.1= 4.
2.5×5= 10+0.4= 2.5×0.4= 7.1×0.2= 1÷0.1= 3.6÷0.4= 0.2×3.1= 4.
(5.3×3.75+3.75×3.5)÷2.2 9.6÷(4.8×7.2+2.8×4.8)
计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.
计算:1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9=______.