如题所述
0.75÷15ï¼0.05,
0.4Ã0.8ï¼0.32,
4Ã0.25ï¼1,
0.36ï¼1.54ï¼2
1.01Ã99ï¼99.99,
420÷35ï¼12,
25Ã12ï¼300,
135÷0.5ï¼270
3/4 + 1/4 =1,
2 + 4/9 =22/9,
3 - 2/3 =7/3,
3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2,
7.5-(2.5+3.8)=1.2,
7/8 + 3/8 =5/4
0.4Ã0.8ï¼0.32,
4Ã0.25ï¼1,
0.36ï¼1.54ï¼2
1.01Ã99ï¼99.99,
420÷35ï¼12,
25Ã12ï¼300,
135÷0.5ï¼270
3/4 + 1/4 =1,
2 + 4/9 =22/9,
3 - 2/3 =7/3,
3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2,
7.5-(2.5+3.8)=1.2,
7/8 + 3/8 =5/4
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