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0.56÷0.04= 1.44÷2= 24.6÷0.6= 4.5÷0.15=
0.63÷0.09= 12.84÷1.2= 3.9÷0.13= 1.6÷1.6=
20÷0.25= 1.3÷2.5= 100÷12.5= 7.8÷0.13=
3.24÷0.8= 13×1.1= 5.46÷3= 4.07×3=
5.28t-1.99t= 0.6+89= 5.7×0.1= 1.6÷0.4=
6÷0.3= 5÷0.25= 0.45×3= 0.35×8=
7.1-0.76= 1.2×0.3= 0.76÷4= 1.9×0.8=
4.2-2.8= 7.2÷1.6= 19.8+3.2= 18-17.45=
4.5+1.5= 0.75x+0.25x= 2.5×4= 0.46÷2=
0.7×1.4= 1-0.92= 8×0.125= 3.4÷20=
10a-1.8a= 4.8×0.2= 0.3÷0.15= 0.15÷2=
0.2×0.5= 2.2-1.8= 3.1+1.75= 32.8+1.9=
0.42×0.5= 0.76+1.24= 3.06-0.72= 0.51÷17=
5.2÷13= 8.2×0.01= 1.72-0.73= 1.6×0.4=
4.8b+3.2b= 2.5×4= 0.3×101= 1.2×0.5=
分析:本题按照运算法则直接求解;注意含有字母的算式,结果不要忘记字母.
解答:解:
0.56÷0.04=14, 1.44÷2=0.72, 24.6÷0.6=41, 4.5÷0.15=30,
0.63÷0.09=7, 12.84÷1.2=10.7, 3.9÷0.13=30, 1.6÷1.6=1,
20÷0.25=80, 1.3÷2.5=0.52, 100÷12.5=8, 7.8÷0.13=60,
3.24÷0.8=4.05, 13×1.1=14.3, 5.46÷3=1.82, 4.07×3=12.21,
5.28t-1.99t=3.29t, 0.6+89=89.6, 5.7×0.1=0.57, 1.6÷0.4=4,
6÷0.3=20, 5÷0.25=20, 0.45×3=1.35, 0.35×8=2.8,
7.1-0.76=6.34, 1.2×0.3=0.36, 0.76÷4=0.19, 1.9×0.8=15.2,
4.2-2.8=1.4, 7.2÷1.6=4.5, 19.8+3.2=23, 18-17.45=0.55,
4.5+1.5=6, 0.75x+0.25x=x, 2.5×4=10, 0.46÷2=0.23,
0.7×1.4=0.98, 1-0.92=0.08, 8×0.125=1, 3.4÷20=0.17,
10a-1.8a=8.2a, 4.8×0.2=0.96, 0.3÷0.15=2, 0.15÷2=0.075,
0.2×0.5=0.1, 2.2-1.8=0.4, 3.1+1.75=4.85, 32.8+1.9=34.7,
0.42×0.5=0.21, 0.76+1.24=2, 3.06-0.72=2.34, 0.51÷17=0.03,
5.2÷13=0.4, 8.2×0.01=0.082, 1.72-0.73=0.99, 1.6×0.4=0.64,
4.8b+3.2b=8b, 2.5×4=10, 0.3×101=30.3, 1.2×0.5=0.6.
故答案为:14,0.72,41,30;7,10.7,30,1;80,0.52,8,60;4.05,14.3,1.82,12.21;3.29t,89.6,0.57,4;20,20,1.35,2.8;6.34,0.36,0.19,15.2;1.4,4.5,23,0.55;6,x,10,0.23;0.98,0.08,1,0.17;8.2a,0.96,2,0.075;0.1,0.4,4.85,34.7;0.21,2,2.34,0.03;0.4,0.082,0.99,0.64;8b,10,30.3,0.6.
点评:本题考查了小数的计算,计算时要细心,注意小数点的位置.
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