2026年练习部分三年级数学上册沪教版五四制第3页答案
① 直接写出得数。
$5× 8 + 27 =$ $36÷ 9× 6 =$ $56 - 56÷ 8 =$
$7 + 63÷ 7 =$ $23 - 7 + 13 =$ $10× 10× 0 =$

答案

$5× 8 + 27 = 67$
$36÷ 9× 6 = 24$
$56 - 56÷ 8 = 49$
$7 + 63÷ 7 = 16$
$23 - 7 + 13 = 29$
$10× 10× 0 = 0$
② 计算。
280-18+82
749-49÷7
81÷9×3
385+5×5
365-137-73
48÷6+252
B级

答案

280-18+82
=262+82
=344
749-49÷7
=749-7
=742
81÷9×3
=9×3
=27
385+5×5
=385+25
=410
365-137-73
=365-(137+73)
=365-210
=155
48÷6+252
=8+252
=260
1 在○内填运算符号,在内填数,使算式成立。
○8○4
=4×4
=
○8○
=4-4
=

答案

32 ÷ 8 × 4
=4×4
=16
16 - 8 - 8
=4 - 4
=0