2026年通城学典计算能手三年级数学下册苏教版江苏专版第81页答案
一、口算。
34 + 76 =
74 ÷ 2 =
38 × 2 =
96 ÷ 8 =
87 × 2 =
64 - 45 =
31 × 6 =
78 ÷ 6 =
45 × 5 =
86 ÷ 2 =
52 × 4 =
85 ÷ 5 =
103 × 4 =
624 ÷ 6 =
14 × 30 =
20 + 180 =
802 × 4 =
640 ÷ 2 =
122 × 2 =
264 ÷ 6 =
40 × 17 =
189 ÷ 9 =
170 × 5 =
420 + 370 =
15 × 20 =
720 ÷ 4 =
135 × 2 =
384 ÷ 6 =
502 × 0 =
26 × 50 =

答案

一、110 37 76
12 174 19
186 13 225
43 208 17
412 104 420
200 3208 320
244 44 680
21 850 790
300 180 270
64 0 1300
二、先写出涂色部分表示的分数，再比较大小。


(
$\dfrac{4}{6}$
)○(
$\dfrac{3}{6}$
)
(
$\dfrac{3}{8}$
)○(
$\dfrac{7}{8}$
)
(
$\dfrac{3}{5}$
)○(
$\dfrac{2}{5}$
)
(
$\dfrac{6}{9}$
)○(
$\dfrac{3}{9}$
)

答案

二、$\dfrac{4}{6}＞\dfrac{3}{6}$ $\dfrac{3}{8}＜\dfrac{7}{8}$
$\dfrac{3}{5}＞\dfrac{2}{5}$ $\dfrac{6}{9}＞\dfrac{3}{9}$