怎么算?急急急!!!!
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893+594+107
=893+7+100+594
=900+694
=1594
105+298
=103+2+298
=103+300
=403
5×(17×24)
=(5×24)×17
=120×17
=(100+20)×17
=100×17+20×17
=1700+340
=2040
125×16
=125×8×2
=1000×2
=2000
35×9×2
=35×2×9
=70×9
=630
329+(471+86)
=329+471+86
=800+86
=886
4.67-(2.98+0.67)
=4.67-0.67-2.98
=4-(3-0.02)
=4-3+0.02
=1+0.02
=1.02
73.8×16-73.8×6
=73.8×(16-6)
=73.8×10
=738
=893+7+100+594
=900+694
=1594
105+298
=103+2+298
=103+300
=403
5×(17×24)
=(5×24)×17
=120×17
=(100+20)×17
=100×17+20×17
=1700+340
=2040
125×16
=125×8×2
=1000×2
=2000
35×9×2
=35×2×9
=70×9
=630
329+(471+86)
=329+471+86
=800+86
=886
4.67-(2.98+0.67)
=4.67-0.67-2.98
=4-(3-0.02)
=4-3+0.02
=1+0.02
=1.02
73.8×16-73.8×6
=73.8×(16-6)
=73.8×10
=738
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