【答案】
解:(1)359-102
=359-(100+2)
=359-100-2
=259-2
=257
(2)983-54-146
=983-(54+146)
=983-200
=783
(3)5254-(254+198)
=5254-254-198
=5000-198
=4802
(4)2789-(537-211)
=2789-537+211
=2789+211-537
=3000-537
=2463
點(diǎn)擊查看更多:三年級(jí)數(shù)學(xué)天天練試題及答案
奧數(shù)網(wǎng)提醒:
小學(xué)試題、單元測(cè)試題、小學(xué)知識(shí)點(diǎn)
盡在奧數(shù)網(wǎng)公眾號(hào)