6、在○里填上+、- 或×。 6%
4○4=8 6○1=5 2○3=6
6○6=12 5○4=20 3○1=3
7、改写成乘法算式:3%
2+2+2+2+2
6+6+6+6
4+4+4+4+4+3
8、按要求列式:4%
(1)写出4道积是12的乘法算式:
(2)写出4道除数是5的除法算式:
三、慎思妙断:(对的打"√",错的打"×")(6分)
1、2×5读作2乘5,6÷2读作6除2。 ( )
2、2+2可以写成2×2,3+3可以写成3×3。 ( )
3、6+6表示2个6相加。 ( )
4、3个6相加可以写成3×6。 ( )
5、小红身高128米。 ( )
6、8个 分给4个小朋友,每人一定有2个。( )
四、画一画。(10分)
(1)画一条长7厘米的线段。(3分)
(2)下面的图形至少可以分成几个三角形?3%
(3)在下面的钉子板上画一个四边形和一个六边形。4%
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五、文字游戏(10分)
1、3个5相加的和是多少?
2、除数是4,被除数是20,商是多少?