问题 解答题
直接写得数
343-289=32+82=1322-199=49×
2
21
=
1-3÷7=
5×4×2=6÷2%=1.87+5.13=
1
12
÷6=
3
4
×4×
3
4
=
9.9÷0.1=0.35×200=0.32-0.22=
4
5
×25=
1
8
+
1
4
×16=
2.8×25+12=41+25=1-
2
5
=
3
5
÷
3
10
=
1-2×
1
6
=
答案

343-289=54,32+82=73,1322-199=1123,49×
2
21
=
14
3
1-3÷7=
4
7
5×4×2=40,6÷2%=300,1.87+5.13=7,
1
12
÷6=
1
72
3
4
×4×
3
4
=
9
4
9.9÷0.1=99,0.35×200=70,0.32-0.22=0.05,
4
5
×25=20,
1
8
+
1
4
×16=4
1
8
2.8×25+12=82,41+25=66,1-
2
5
=
3
5
3
5
÷
3
10
=2,
1-2×
1
6
=
2
3

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