22*47+42*53等于几?
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![22*47+42*53等于几?](/uploads/image/z/752419-19-9.jpg?t=22%2A47%2B42%2A53%E7%AD%89%E4%BA%8E%E5%87%A0%3F)
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22*47+42*53等于几?
22*47+42*53等于几?
22*47+42*53等于几?
22*47+42*53
=22*47+(22+20)*53
=22*47+22*53+20*53
=22*(47+53)+1060
=22*100+1060
=2200+1060
=3260.
22*47+42*53
=22*47+22*53+20*53
=(47+53)*22+20*53
=100*22+20*53
=2200+1060
=3260
22*47+(22+20)*53=2200+1060=3260
22*47+42*53
=22*47+42*(100-47)
=22*47+42*100-42*47
=4200-20*47
=4200-940
=3260
=1034+2226
=3260
3260
22×(100-53)+42×53
=2200+(42-22)×53
=2200+20×53
=3260