题目内容
计算下列各式:2x2•(-2xy)•(-
x3y2)3=______;
(2×106)•(8×103)÷(1.5×105)=______.
| 1 |
| 2 |
(2×106)•(8×103)÷(1.5×105)=______.
(1)2x2•(-2xy)•(-
x3y2)3
=2x2•(-2xy)•(-
x9y6),
=0.5x12y7;
(2)(2×106)•(8×103)÷(1.5×105),
=16×109÷(1.5×105),
=
×105.
| 1 |
| 2 |
=2x2•(-2xy)•(-
| 1 |
| 8 |
=0.5x12y7;
(2)(2×106)•(8×103)÷(1.5×105),
=16×109÷(1.5×105),
=
| 16 |
| 15 |
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