直接写出得数。
$9.4×0.2=$ $8.2÷4=$ $0.7×0.7=$
$8÷0.25=$ $2.4÷0.06=$ $4.58 + 2.9=$
$2.1 - 1.09=$ $0.3 + 0.17=$ $20.1 - 9.9=$
$2 - 0.6=$ $0.02×500=$ $1.82 - 0.08=$
$4.15×6=$ $2.5×40=$ $115×0.6=$
$1 + 0.01=$ $6.07 - 0.8=$ $8.1÷81=$
$40×7.5=$ $4.4 + 0.32=$ $20 - 2.06=$
$9.4×0.2=$ $8.2÷4=$ $0.7×0.7=$
$8÷0.25=$ $2.4÷0.06=$ $4.58 + 2.9=$
$2.1 - 1.09=$ $0.3 + 0.17=$ $20.1 - 9.9=$
$2 - 0.6=$ $0.02×500=$ $1.82 - 0.08=$
$4.15×6=$ $2.5×40=$ $115×0.6=$
$1 + 0.01=$ $6.07 - 0.8=$ $8.1÷81=$
$40×7.5=$ $4.4 + 0.32=$ $20 - 2.06=$
答案:
1.88 2.05 0.49
32 40 7.48
1.01 0.47 10.2
1.4 10 1.74
24.9 100 69
1.01 5.27 0.1
300 4.72 17.94
二、在$\bigcirc$里填上“$>$”“$<$”或“$=$”。
$\frac{5}{6}\bigcirc\frac{5}{7}$ $\frac{6}{17}\bigcirc\frac{6}{11}$ $\frac{5}{12}\bigcirc\frac{7}{12}$
$\frac{1}{3}\bigcirc\frac{2}{3}$ $\frac{13}{19}\bigcirc\frac{3}{19}$ $\frac{15}{19}\bigcirc\frac{15}{17}$
$\frac{2}{9}\bigcirc\frac{2}{7}$ $\frac{15}{18}\bigcirc\frac{15}{16}$ $\frac{5}{12}\bigcirc\frac{5}{7}$
$\frac{5}{6}\bigcirc\frac{5}{7}$ $\frac{6}{17}\bigcirc\frac{6}{11}$ $\frac{5}{12}\bigcirc\frac{7}{12}$
$\frac{1}{3}\bigcirc\frac{2}{3}$ $\frac{13}{19}\bigcirc\frac{3}{19}$ $\frac{15}{19}\bigcirc\frac{15}{17}$
$\frac{2}{9}\bigcirc\frac{2}{7}$ $\frac{15}{18}\bigcirc\frac{15}{16}$ $\frac{5}{12}\bigcirc\frac{5}{7}$
答案:
> < < < > <
< < <
三、计算下面各题,能简算的要简算。
$3.6×[0.9÷(2.1 - 2.05)]$ $7.82×2.5 - 1.65÷0.55$
$0.8×72.4×12.5$ $3.2×0.7 + 5.1÷1.7$ $0.24×2.5 + 3.6×0.25$
$3.6×[0.9÷(2.1 - 2.05)]$ $7.82×2.5 - 1.65÷0.55$
$0.8×72.4×12.5$ $3.2×0.7 + 5.1÷1.7$ $0.24×2.5 + 3.6×0.25$
答案:
64.8 16.55
724 5.24 1.5
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