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一、口算。
$\frac{16}{9}-\frac{8}{9}=$
$\frac{23}{50}+\frac{2}{50}=$
$\frac{7}{18}-\frac{6}{18}=$
$\frac{2}{7}+\frac{4}{7}=$
$\frac{52}{78}-\frac{25}{78}=$
$\frac{12}{15}+\frac{8}{15}=$
$\frac{5}{14}-\frac{3}{14}=$
$\frac{13}{36}+\frac{7}{36}=$
$\frac{17}{21}-\frac{11}{21}=$
$207÷9=$
$3.2×0.3=$
$0.75÷2.5=$
$1.8×70=$
$21÷0.7=$
$2.7+0.33=$
$750÷1.5=$
$16-0.16=$
$0.24×0.8=$
$1.5×9=$
$3.65+0.35=$
$0.039÷0.13=$
$6.7+23=$
$200×0.85=$
$8.4-0.84=$
$3.11-1.96=$
$24×5=$
$0.16×5=$
$316+684=$
$2.7×0.9=$
$0.36-0.28=$
$\frac{16}{9}-\frac{8}{9}=$
$\frac{8}{9}$
$\frac{23}{50}+\frac{2}{50}=$
$\frac{25}{50}$
$\frac{7}{18}-\frac{6}{18}=$
$\frac{1}{18}$
$\frac{2}{7}+\frac{4}{7}=$
$\frac{6}{7}$
$\frac{52}{78}-\frac{25}{78}=$
$\frac{27}{78}$
$\frac{12}{15}+\frac{8}{15}=$
$\frac{20}{15}$
$\frac{5}{14}-\frac{3}{14}=$
$\frac{2}{14}$
$\frac{13}{36}+\frac{7}{36}=$
$\frac{20}{36}$
$\frac{17}{21}-\frac{11}{21}=$
$\frac{6}{21}$
$207÷9=$
23
$3.2×0.3=$
0.96
$0.75÷2.5=$
0.3
$1.8×70=$
126
$21÷0.7=$
30
$2.7+0.33=$
3.03
$750÷1.5=$
500
$16-0.16=$
15.84
$0.24×0.8=$
0.192
$1.5×9=$
13.5
$3.65+0.35=$
4
$0.039÷0.13=$
0.3
$6.7+23=$
29.7
$200×0.85=$
170
$8.4-0.84=$
7.56
$3.11-1.96=$
1.15
$24×5=$
120
$0.16×5=$
0.8
$316+684=$
1000
$2.7×0.9=$
2.43
$0.36-0.28=$
0.08
答案
一、$\frac{8}{9}$ $\frac{25}{50}$ $\frac{1}{18}$
$\frac{6}{7}$ $\frac{27}{78}$ $\frac{20}{15}$
$\frac{2}{14}$ $\frac{20}{36}$ $\frac{6}{21}$
23 0.96 0.3
126 30 3.03
500 15.84 0.192
13.5 4 0.3
29.7 170 7.56
1.15 120 0.8
1000 2.43 0.08
$\frac{6}{7}$ $\frac{27}{78}$ $\frac{20}{15}$
$\frac{2}{14}$ $\frac{20}{36}$ $\frac{6}{21}$
23 0.96 0.3
126 30 3.03
500 15.84 0.192
13.5 4 0.3
29.7 170 7.56
1.15 120 0.8
1000 2.43 0.08
二、在$◯$里填“＞”“＜”或“=”。
$0.75◯$
$0.625◯$
$\frac{6}{5}◯$
$\frac{9}{10}◯$
$\frac{1}{3}◯$
$\frac{3}{8}◯$
$\frac{9}{4}◯$
$\frac{7}{20}◯$
$0.6◯$
$0.75◯$
＞
$\frac{7}{12}$$0.625◯$
＜
$\frac{2}{3}$$\frac{6}{5}◯$
=
$1.2$$\frac{9}{10}◯$
＞
$0.875$$\frac{1}{3}◯$
＞
$0.3$$\frac{3}{8}◯$
＜
$0.4$$\frac{9}{4}◯$
=
$2.25$$\frac{7}{20}◯$
＜
$0.5$$0.6◯$
=
$\frac{3}{5}$答案
二、＞ ＜ =
＞ ＞ ＜
= ＜ =
＞ ＞ ＜
= ＜ =
