三年级下册小数点口算题卡脱式计算加减法
3.5+2.3-4.7
=5.8-4.7
=1.1,
23.5+12.4-30.1
=35.9-30.1
=5.8.
3.5+2.3-4.7
=5.8-4.7
=1.1,
23.5+12.4-30.1
=35.9-30.1
=5.8.
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