答:三年级上册脱式计算如下:
32十40÷2
=32十20
=52
101十203-200
=100+1十200十2-200
=300一200十3
=100十3
=103
45一42÷6
=45-7
=38
72十(53一28)
=72十25
=97
114一35一65
=114-(35十65)
=114一100
=14。…
72÷8+9×5 36÷4+21×2 25÷5-16÷4
56÷7+36÷6 500×(400-396) 72÷9-5
564+264-453 7650-(546+4530) 65×9-450
9×80+980 9000-(4500+250) 6700+72÷8
14×6+9×5 900÷(71-68) 180÷9-42÷6
12÷6+45×3 8×(910-720) 760-540+1110