五、看图列式并计算。
1.
$□◯□=□$
(颗)
2.
$□◯ □=□$
(米)
1.
$□◯□=□$
2.
$□◯ □=□$
答案
1.9×4=36 2.9×6=54
六、解决问题。

1. 小白兔一共拔了多少根萝卜?
2. 小灰兔一共拔了多少根萝卜?
1. 小白兔一共拔了多少根萝卜?
2. 小灰兔一共拔了多少根萝卜?
答案
1.9×2=18(根) 2.9+2=11(根)
解析
1. $9×2=18$(根)
2. $9+2=11$(根)
2. $9+2=11$(根)
七、找规律填空。
$32 - 23 = 9×1 = 9$
$42 - 24 = 9×2 = 18$
$51 - 15 = 9×( ) = ( )$
$63 - 36 = 9×( ) = ( )$
$71 - 17 = ( )×( ) = ( )$
$94 - 49 = ( )×( ) = ( )$
$( ) - ( ) = ( )×( ) = ( )$
$32 - 23 = 9×1 = 9$
$42 - 24 = 9×2 = 18$
$51 - 15 = 9×( ) = ( )$
$63 - 36 = 9×( ) = ( )$
$71 - 17 = ( )×( ) = ( )$
$94 - 49 = ( )×( ) = ( )$
$( ) - ( ) = ( )×( ) = ( )$
答案
4 36 3 27 9 6 54 9 5 45 81-18=9×7=63(答案不唯一)
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