98+303用简便计算怎样算
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98+303用简便计算怎样算
98+303用简便计算怎样算
98+303用简便计算怎样算
98+303=(100-2)+(300+3)=(100+300)+(3-2)=400+1=401
98+303=100-2+303=100+301=401
98+303
=(98+2)+(303-2)
= 100+301
= 401
98+303用简便计算怎样算
98+303用简便计算怎样算
98+303用简便计算怎样算
98+303=(100-2)+(300+3)=(100+300)+(3-2)=400+1=401
98+303=100-2+303=100+301=401
98+303
=(98+2)+(303-2)
= 100+301
= 401