题目内容
59×201≈
339×68≈
502×33≈
298×19≈
339×68≈
502×33≈
298×19≈
(1)59×201,
≈60×200,
=12000;
(2)339×68,
≈300×70
=21000;
(3)502×33,
≈500×30,
=15000;
(4)298×19,
≈300×20,
=6000.
≈60×200,
=12000;
(2)339×68,
≈300×70
=21000;
(3)502×33,
≈500×30,
=15000;
(4)298×19,
≈300×20,
=6000.
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