Topic : Number-Newly defined symbols for operation
1.
2.
from: category_eng

1.Understanding
do not calculate in hurry!

Ans: A

2.Understanding

Ans: E

1.

2.
Follow the definition.
3.

4.
(1)Subtraction or Division
5.
Understand what the newsymbol is.
6.
Inequality problem can be interpreted as max or min.
1. a
Understanding
2. c
Understanding
Follow the definition.
*(1,3,8,5)=1-3+8-5=1
3. E
Understanding
3*4-(-2)*5=12+10=22
4. D
Understanding
(1)Subtraction or Division
The answer for the question with those conditions is No
5. D
Understand what the newsymbol is.
6. D
Understanding
Inequality problem can be interpreted as max or min.