Question

3. Calculează, respectând ordinea efectuării operaţiilor:
a)
6 X 9 - 10 x 3 =
98 - 4x2 x 9 =
9 x 9 -5 x 8 - 3 x 1 =
b) 5 x (33 - 28) - (5x5)
(61 - 56) x (41 - 33) = .
(4 x 5 - 3 x 6) + (2 X 10 - 4 x 3) =
(7 x 5 - 6 x 4) + (3 x 5 -5 x 3) = 11
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Answer 1

54-30=24
98-8x9=98-72=26
81-40-3=38
5x5-25=25-25=0
5x8=40
(20-18)+(20-12)=2+8=10
(35-24)+(15-15)=11+0=11 (adevarat)