口算:1/2-1/3= 4/5-8/25= 13/20+7/100=
3个回答
1/2-1/3=1/6;
4/5-8/25=12/25;
13/20+7/100=72/100=18/25;
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相关问题
口算. 3 4 × 5 6 = 1 7 ÷5= 1÷ 4 7 = 15× 4 15 = 1.25× 1 8 = 2 9
口算:23.1+15.8+21.9=100-0.5=7.2÷1.25÷0.8=5.5-5.5÷5=1.2×0.5=3÷7
口算我最棒. 7.8:______= 1 3 1÷ 3 8 - 3 8 ÷1= ______:0.25= 3 4 4 2
13.5-(3.8*1.25-1.25+7.2*1.25)怎么简算
请问1.1+2.2+3.3+4.4+5.5+6.6+7.7+8.8+9.9+10+11.1+12.2+13.3.+100
口算. 8.4+3.2= 7-1.2= 1.93+0.8= 4.6+3.4= 0×358= 4.2×10÷100= 5÷
1/3+1/6+1/2= 一又4/5-7/20-9/20= 17/20-(3/8+1/5)= 13/17-(5/17+1
口算 2 7 - 2 7 ÷3= 1 4 ×8÷ 1 4 ×8= 4.5×101= 31.7-10.8= 2÷ 1 5
口算4.8÷3= 1.8×0.5= 0.04×5= 0÷8.13= 25.2÷6= 3.5×0.07= 3.6÷1.8=
口算我最棒. 7.8:______=[1/3] 1÷[3/8]-[3/8]÷1= ______:0.25=[3/4] [