口算.8.1÷0.03=35+3=516×815=79-13=89×924=134-18=1.5×4=7.45+8.55=25÷110=2.4-12=3.5×57=37×23=
口算. 8.1÷0.03= | +3= | ×= | -= |
×= | 134-18= | 1.5×4= | 7.45+8.55= |
25÷= | 2.4-= | 3.5×= | ×= |
口算. 8.1÷0.03= | +3= | ×= | -= |
口算. 8.1÷0.03= | +3= | +3=3 |
3 | 5 |
5 | ×= | ×=5 |
5 | 16 |
16 | =8 |
8 | 15 |
15 | -= | -=7 |
7 | 9 |
9 | =1 |
1 | 3 |
3 | ×= | 134-18= | 1.5×4= | 7.45+8.55= |
×= | ×=8 |
8 | 9 |
9 | =9 |
9 | 24 |
24 | 134-18= | 1.5×4= | 7.45+8.55= | 25÷= | 2.4-= | 3.5×= | ×= |
25÷= | =1 |
1 | 10 |
10 | 2.4-= | =1 |
1 | 2 |
2 | 3.5×= | =5 |
5 | 7 |
7 | ×= | ×=3 |
3 | 7 |
7 | =2 |
2 | 3 |
3 |
答案和解析
8.1÷0.03=270, | +3=3, | ×=, | -=, |
×=, | 134-18=116, | 1.5×4=6, | 7.45+8.55=16, |
25÷=250, | 2.4-=1.9, | 3.5×=2.5, | ×=. |
8.1÷0.03=270, | +3=3, | ×=, | -=, |
8.1÷0.03=270, | 8.1÷0.03=270,
+3=3, | +3=3,3 |
3 | 3
5 |
5 | 5+3=3
,3 |
3 | 3
5 |
5 | 5,
×=, | ×=,5 |
5 | 5
16 |
16 | 16×
=,8 |
8 | 8
15 |
15 | 15=
,1 |
1 | 1
6 |
6 | 6,
-=, | -=,7 |
7 | 7
9 |
9 | 9-
=,1 |
1 | 1
3 |
3 | 3=
,4 |
4 | 4
9 |
9 | 9,
×=, | 134-18=116, | 1.5×4=6, | 7.45+8.55=16, |
×=, | ×=,8 |
8 | 8
9 |
9 | 9×
=,9 |
9 | 9
24 |
24 | 24=
,1 |
1 | 1
3 |
3 | 3,
134-18=116, | 134-18=116,
1.5×4=6, | 1.5×4=6,
7.45+8.55=16, | 7.45+8.55=16,
25÷=250, | 2.4-=1.9, | 3.5×=2.5, | ×=. |
25÷=250, | 25÷
=250,1 |
1 | 1
10 |
10 | 10=250,
2.4-=1.9, | 2.4-
=1.9,1 |
1 | 1
2 |
2 | 2=1.9,
3.5×=2.5, | 3.5×
=2.5,5 |
5 | 5
7 |
7 | 7=2.5,
×=. | ×=.3 |
3 | 3
7 |
7 | 7×
=.2 |
2 | 2
3 |
3 | 3=
.2 |
2 | 2
7 |
7 | 7.
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