尾数是0的三位数乘法
(1)230 × 700 =
(2)100 × 800 =
(3)590 × 860 =
(4)970 × 710 =
(5)460 × 540 =
(6)620 × 570 =
(7)450 × 530 =
(8)540 × 310 =
(9)810 × 850 =
(10)720 × 680 =
(11)290 × 240 =
(12)230 × 740 =
(13)630 × 470 =
(14)280 × 670 =
(15)940 × 760 =
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