36x5+72-216+144
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36 x 5 + 72 x 2 - 216 + 144
= 36 x 5 + 72 x 2 - 36 x 6 + 72 x 2
= 36 x (5 - 6) + 2 x (72 + 72)
= 36 x (-1) + 2 x 144
= -36 + 288
= 252
=36*5+36*2*2-(216-144).
=36*5+36*4-72.
=36*5+36*4-36*2.
=36*(5+4-2).
=36*7.
=252.
\(36\text{×}5+72\text{×}2-216+144\)
\(=36\text{×}5+36\text{×}2\text{×}2-36\text{×}6+36\text{×}4\)
\(=36\text{×}5+36\text{×}4-36\text{×}6+36\text{×}4\)
\(=36\text{×}\left(5+4-6+4\right)=36\text{×}7=252\)
\(\text{a) -72+ (154+76) }\)
\(=-72+230\)
\(=158\)
\(\text{b) (144-97) -144 }\)
\(=47-144\)
\(=-97\)
\(\text{c) -145- (-18-145) }\)
\(=-145-\left(-163\right)\)
\(=18\)
\(\text{d) 38-(12+13+14) }\)
\(=38-39=-1\)
\(\text{e)-144-(29-144-144) }\)
\(=-144-\left(-259\right)=115\)
\(-72+\left(154+74\right)\)
\(=\left(-72\right)+230\)
\(158\)
\(\left(144-97\right)-144\)
\(=47-144\)
\(=-97\)
\(-145-\left(-18-145\right)\)
\(=\left(-145\right)-\left(-163\right)\)
\(=18\)
\(38-\left(12+13+14\right)\)
\(=38-39\)
\(=-1\)
\(-144-\left(19-144-144\right)\)
\(=\left(-144\right)-\left(-259\right)\)
\(=115\)
36 . 5 + 172 . 2 - 216 + 144 = 180 + 344 - 216 + 144 = 524 - 216 + 144 = 308 + 144 = 452
36x5+72-216+144
=180+72-216+144
=252-216+144
=26+144
=170
\(36\cdot5+72-216+144\)
\(=36\cdot5+36\cdot2-36\cdot3+36\cdot4\)
\(=36\left(5+2-3+4\right)\)
\(=36\cdot8=288\)