Question

四年级1 2 3 4 5 6 8 9 7=1怎么做

四年级1 2 3 4 5 6 8 9 7=1怎么做

Answer 1

四年级应该还是加减法为主吧，1+2-3-4+5+6-8+9-7=1 可以从二开始两个两个数字看，让它们持平就行了，这只是一种方法，如果动动脑筋，应该还有更好的解法。

Answer 2

1x2x3x4-5+6-8-9-7=1
1+2+3+4-5+6 -8-9+7=1

Answer 3

你要几种？
(1+2)+3+4+5-6-7+8-9 = 1
(1+2)+3+4-5+6+7-8-9 = 1
(1+2)+3+4*5-6*7+8+9 = 1
(1+2)+3-4-5-6-7+8+9 = 1
(1+2)+3*4*5/6*7-8*9 = 1
(1+2)-3+4-5-6+7-8+9 = 1
(1+2)-3-4+5+6-7-8+9 = 1
(1+2)-3-4+5-6+7+8-9 = 1
(1+2)-3*4*5/6+7-8+9 = 1
(1+2)-3/4-5-6*7/8+9 = 1
(1+2)*3-4*5+6+7+8-9 = 1
(1+2)*3*4+5*6+7-8*9 = 1
(1+2)*3*4+5*6-7*8-9 = 1
(1+2)*3*4-5+6*7-8*9 = 1
(1+2)*3*4-5-6-7-8-9 = 1
(1+2)*3/4-5-6*7/8+9 = 1
(1+2)/3*4-5-6+7-8+9 = 1
(1-2)+3+4-5+6-7-8+9 = 1
(1-2)+3+4-5-6+7+8-9 = 1
(1-2)+3-4+5+6-7+8-9 = 1
(1-2)+3*4*5/6-7+8-9 = 1
(1-2)+3/4+5+6*7/8-9 = 1
(1-2)-3+4+5+6+7-8-9 = 1
(1-2)-3-4+5-6-7+8+9 = 1
(1-2)-3-4-5+6+7-8+9 = 1
(1-2)-3-4*5+6*7-8-9 = 1
(1-2)-3*4*5/6*7+8*9 = 1
(1-2)*3+4*5-6+7-8-9 = 1
(1-2)*3*4-5-6+7+8+9 = 1
(1*2)+3-4*5+6-7+8+9 = 1
(1*2)+3*4+5+6-7-8-9 = 1
(1*2)-3+4*5+6-7-8-9 = 1
(1*2)-3-4+5*6-7-8-9 = 1
(1*2)-3*4-5+6-7+8+9 = 1
(1*2)-3*4*5+6*7+8+9 = 1
(1*2)-3*4*5-6+7*8+9 = 1
(1*2)-3*4*5-6-7+8*9 = 1
(1*2)*3+4+5-6-7+8-9 = 1
(1*2)*3+4-5+6+7-8-9 = 1
(1*2)*3+4*5-6*7+8+9 = 1
(1*2)*3-4-5-6-7+8+9 = 1
(1*2)*3*4-5+6-7-8-9 = 1
(1/2)-3/4+5+6*7/8-9 = 1
(1/2)*3*4-5+6-7-8+9 = 1
(1/2)*3*4-5-6+7+8-9 = 1
1+(2+3)+4+5-6-7+8-9 = 1
1+(2+3)+4-5+6+7-8-9 = 1
1+(2+3)+4*5-6*7+8+9 = 1
1+(2+3)-4-5-6-7+8+9 = 1
1+(2+3)*4+5-6*7+8+9 = 1
1+(2+3)*4-5*6-7+8+9 = 1
1+(2+3)*4/5+6+7-8-9 = 1