题目内容
在横线里填上“>”、“<”或“=”.
| 2.7÷0.99______2.7×0.99 | 1.21×1.1______1.11×1.21 |
| 0.5÷5______5÷0.5 | 8.89×5.22______52.2×0.889. |
(1)2.7÷0.99>2.7×0.99;
(2)因为1.21×1.1=1.331,1.11×1.21=1.3431,
又因1.331<1.3431,
所以1.21×1.1<1.11×1.21;
(3)因为0.5÷5=0.1,5÷0.5=10,
所以0.5÷5<5÷0.5;
(4)因为8.89×5.22=46.4058,52.2×0.889=46.4058,
所以8.89×5.22=52.2×0.889.
故答案为:>、<、<、=.
(2)因为1.21×1.1=1.331,1.11×1.21=1.3431,
又因1.331<1.3431,
所以1.21×1.1<1.11×1.21;
(3)因为0.5÷5=0.1,5÷0.5=10,
所以0.5÷5<5÷0.5;
(4)因为8.89×5.22=46.4058,52.2×0.889=46.4058,
所以8.89×5.22=52.2×0.889.
故答案为:>、<、<、=.
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