Page 59 - aljaber

@ @¶ìÿa@óÝy‹¾a@ u@ @TV

36 :( ) ()
. 36 = 1× 36 = 2 × 18 = 3 × 12 = 4 × 9 = 6 × 6

:

1 + 36 , 2 + 18 , 3 + 12 , 4 + 9 , 6 + 6

.1 + 36 = 37

:( ) ()
()
(1 + 49) + (11 + 39) + (21 + 29) + (31 + 19) + (41 + 9) ()
()
= 50 + 50 + 50 + 50 + 50 = 250

:( )

. 0.99 > 0.9099 > 0.909 > 0.9009 > 0.9

:( )

.−15 + 9 ×(6 ÷ 3) = −15 + 9 × 2 = −15 + 18 = 3

0 5 :( )

. 20 = 4 . 20
.y = 3 × 4 = 12
5

:( ) ( )

(2 × 3 × 4) 1 + 1 + 1  = (2 × 3 × 4) × 12 +8+6
2 3 4 2 ×3×4

= 12 + 8 + 6 = 26

. (2 × 3 × 4) 1 + 1 + 1  = 3×4 + 2×4 + 2× 3 = 26
2 3 4

:( ) ()