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1、 连乘, 连除和乘除混合运算执教者:于建军入门关卡2 3 = 6 4=9 3=4 9=8 2=48 6=36 4=36 6=36 36 4 4 3 = 3 =9 927278 8 3 3 6 = 6 =24244 42 2 3 3 4 = 4 =6 6242448 48 6 6 2 = 2 =8 84 42 2 3 3 4 = 4 =6 6242436 36 4 4 3 = 3 =9 9272748 48 6 6 2 = 2 =8 84 48 8 3 3 6 = 6 =24244 4连乘、连除和乘除混合运算连乘、连除和乘除混合运算按照从左到右的顺序依次计算4 96 3 27 4 49 96 =
2、 6 = 3 32 27 = = 36366 66 642426 64242= 9 = 9 = 45 = 45 = 45 = 45 = 6 = 6 = 48 = 48 = 48 = 48 = 4 = 4 = 2 = 2 = 2 = 2 6 3 9=2 4 9=16 4 2=32 4 9=2722726 63 + 8 3 + 8 2 22 28 8 27273 33 3 6 66 64 4 56567 75 5 4 42 27 7 64648 84 4 开火车钻山洞开火车钻山洞 96 8+501832474跷跷板6 9 7 84 2 8 1681 8 863 7 3 2754 9 2 32438 0= 吃糖果小明有20块糖果,她每天吃3块,吃了5天,吃了多少块?还剩多少块?=( )=( ) 3515块块块块20155找规律122364239182436684636649 10-164=你会做吗?