27 + 45 =
19 + 66 =
35 - 19 =
49 + 34 =
73 - 45 =
80 - 27 =
29 + 68 =
57 - 49 =
81 - 58 =
51 - 6 =
72 + 28 =
43 - 27 =
58 - 19 =
19 + 66 =
35 - 19 =
49 + 34 =
73 - 45 =
80 - 27 =
29 + 68 =
57 - 49 =
81 - 58 =
51 - 6 =
72 + 28 =
43 - 27 =
58 - 19 =
答案:
在括号里填上合适的数。
591 = 500 + ( ) + ( )
6006 = ( ) + ( )
5201 = ( ) + ( ) + ( )
7030 = ( ) + ( )
566 = ( ) + ( ) + ( )
980 = ( ) + ( )
5470 = ( ) + ( ) + ( )
435 = ( ) + ( ) + ( )
721 = ( ) + ( ) + ( )
4542 = ( ) + ( ) + ( ) + ( )
6010 = ( ) + ( )
4508 = ( ) + ( ) + ( )
591 = 500 + ( ) + ( )
6006 = ( ) + ( )
5201 = ( ) + ( ) + ( )
7030 = ( ) + ( )
566 = ( ) + ( ) + ( )
980 = ( ) + ( )
5470 = ( ) + ( ) + ( )
435 = ( ) + ( ) + ( )
721 = ( ) + ( ) + ( )
4542 = ( ) + ( ) + ( ) + ( )
6010 = ( ) + ( )
4508 = ( ) + ( ) + ( )
答案:
算一算,填一填。
$\square + \bigcirc = 1500$ $\square = \bigcirc + \bigcirc$
$\square = ( )$, $\bigcirc = ( )$
$\square + \bigcirc = 1500$ $\square = \bigcirc + \bigcirc$
$\square = ( )$, $\bigcirc = ( )$
答案:
答案:
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