| 不用计算,判断对错。(对的打“√”,错的打“×”) (1)432×21=6716 |
|
[ ] |
| (2)408×13=5304 |
|
[ ] |
| (3)160×40=640 |
|
[ ] |
| (4)88×34=318 |
|
[ ] |
| (5)48×48=2304 |
|
[ ] |
| (6)150×51=800 |
|
[ ] |
| (7)89×22=278 |
|
[ ] |
| (8)244×99=1456 |
|
[ ] |
| (1)×;(2)√;(3)×;(4)×;(5)√;(6)×;(7)×;(8)× |
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[ ]
(2)95-63+28[ ]
(1)49+56-38
=105-38
=67
(2)95-63+28
=95-91
= 4
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