如题所述
98*34=（100-2）*34=3400-68=3332
101*48-48=（101-1）*48=100*48=4800
101*48-48=（101-1）*48=100*48=4800
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第1个回答 2013-11-13
98×34
=(100-2)×34
=100×34-2×34
=3400-68
=3332
101×48-48
=(101-1)×48
=100×48
=4800
=(100-2)×34
=100×34-2×34
=3400-68
=3332
101×48-48
=(101-1)×48
=100×48
=4800
第2个回答 2013-11-13
98*34
=(100-2)*34
=3400-68
=3332
101*48-48
=(101-1)*48
=4800
=(100-2)*34
=3400-68
=3332
101*48-48
=(101-1)*48
=4800
