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ข้อสอบม.1 math final 54
- 1. (x)
-
-
---- --
--- ----
-----
- -
-
- -
- --- - ----
8
-76
-75
9
8 -8
- 2. 9 -9
10
11 (a+b)–c a = 5, b = -21, c = -18
12 a -( b – c) a = -100, b = 54, c = -45
13
4
{
–
-17 17
-20 20
-7
8 -8
-
- ----- - -
---
15
-14 -15
34
-
-m
-m -– ---- - -- -- - - --
m 4
m
5
- 3. x7x7x7x7 7x5
2
3
2 2 2 2 2 2
--
3 3 3
x
-- x 3 3 3
+ +
2x3x3 2+3+3
-
-
- 1 1
2 2
- 1 1
3 3
--
- -
x x
x x
- 4. -
- -
81
256
3 3 3 3 (3 3 3 3)
2 2 2 2 2 2 2 2 ( 2 2 2 2 2 2 2 2)
3 3 3 (3 3 3 3)
2 2 2 2 2 2 2 (2 2 2 2 2 2)
4 3
3 3
8 8
5 2
4
4 3
3 5
8 2
2
a a
a a
a
10