数学题添加符号,帮帮忙!
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/17 22:04:59
数学题添加符号,帮帮忙!
1 2 3 4 =8
1 2 3 4 5 =8
1 2 3 4 5 6 =8
1 2 3 4 5 6 7 =8
1 2 3 4 5 6 7 8 =8
帮忙添上适当的数学符号,使等号两边相等.
1 2 3 4 =8
1 2 3 4 5 =8
1 2 3 4 5 6 =8
1 2 3 4 5 6 7 =8
1 2 3 4 5 6 7 8 =8
帮忙添上适当的数学符号,使等号两边相等.
![数学题添加符号,帮帮忙!](/uploads/image/z/16565100-60-0.jpg?t=%E6%95%B0%E5%AD%A6%E9%A2%98%E6%B7%BB%E5%8A%A0%E7%AC%A6%E5%8F%B7%2C%E5%B8%AE%E5%B8%AE%E5%BF%99%21)
(1-2+ 3)× 4 =8
-1+2+3×4-5 =8
-1×2×3+4×5-6 =8
-(1+2+3×4)+ 5×6-7 =8
1-2+3+4-5+6-7+8 =8
注:
(1-2+ 3)× 4 =2×4=8
-1+2+3×4-5 =1+12-5=13-5=8
-1×2×3+4×5-6 =-6+20-6=20-12=8
-(1+2+3×4)+ 5×6-7 =-(3+12)+30-7=-15+30-7=30-22=8
1-2+3+4-5+6-7+8 =(1-2)+3+(4-5)+(6-7)+8=-1+3-1-1+8=3-3+8=8
-1+2+3×4-5 =8
-1×2×3+4×5-6 =8
-(1+2+3×4)+ 5×6-7 =8
1-2+3+4-5+6-7+8 =8
注:
(1-2+ 3)× 4 =2×4=8
-1+2+3×4-5 =1+12-5=13-5=8
-1×2×3+4×5-6 =-6+20-6=20-12=8
-(1+2+3×4)+ 5×6-7 =-(3+12)+30-7=-15+30-7=30-22=8
1-2+3+4-5+6-7+8 =(1-2)+3+(4-5)+(6-7)+8=-1+3-1-1+8=3-3+8=8