1 Calculează:
a) (17 x 9 + 24 x 8 - 891 : 27): 3 =
b) (528 : 24 + 420 : 3 + 11 x 17 x 15 =
C) 5 x 47 + 12 x 95 – 725 : 25 =
d) (247 + 743): 45 + 4x (276 - 197) =
e) 9x (17 x 4 + 27) -(105 + 75 + 65):5 =
f) [1 500 + 27 x (639 : 9) - (536 : 8)]: 10 =
g) [(63 + 19 x 24) 3 + 464 : 4 – 11 x 11] 25 =
Răspunsuri la întrebare
a) ( 17 × 9 + 24 × 8 - 891 : 27 ) : 3 =
( 153 + 24 × 8 - 891 : 27 ) : 3 =
( 153 + 192 - 891 : 27 ) : 3 =
( 153 + 192 - 33 ) : 3 =
( 345 - 33 ) : 3 =
312 : 3 = 104
b) ( 528 : 24 + 420 : 3 + 11 × 17 ) × 15 =
( 22 + 420 : 3 + 11 × 17 ) × 15 =
( 22 + 140 + 11 × 17 ) × 15 =
( 22 + 140 + 187 ) × 15 =
( 162 + 187 ) × 15 =
349 × 15 = 5235
c) 5 × 47 + 12 × 95 - 725 : 25 =
235 + 12 × 95 - 725 : 25 =
235 + 1140 - 725 : 25 =
235 + 1140 - 29 =
1375 - 29 = 1346
d) ( 247 + 743 ) : 45 + 4 × ( 276 - 197 ) =
990 : 45 + 4 × ( 276 - 197 ) =
990 : 45 + 4 × 79 =
22 + 4 × 79 =
22 + 316 = 338
e) 9 × ( 17 × 4 + 27 ) - ( 105 + 75 + 65 ) : 5 =
9 × ( 68 + 27 ) - ( 180 + 65 ) : 5 =
9 × 95 - ( 180 + 65 ) : 5 =
9 × 95 - 245 : 5 =
855 - 245 : 5 =
855 - 49 = 806
f) [ 1500 + 27 × ( 639 : 9 ) - ( 536 : 8 ) ] : 10 =
[ 1500 + 27 × 71 - ( 536 : 8 ) ] : 10 =
( 1500 + 27 × 71 - 67 ) : 10 =
( 1500 + 1917 - 67 ) : 10 =
( 3417 - 67 ) : 10 =
3350 : 10 = 335
g) [ ( 63 + 19 × 24 ) × 3 + 464 : 4 - 11 × 11 ] × 25 =
[ ( 63 + 456 ) × 3 + 464 : 4 - 11 × 11 ] × 25 =
( 519 × 3 + 464 : 4 - 11 × 11 ] × 25 =
( 1557 + 464 : 4 - 11 × 11 ) × 25 =
( 1557 + 116 - 11 × 11 ) × 25 =
( 1557 + 116 - 121 ) × 25 =
( 1673 - 121 ) × 25 =
1552 × 25 = 38800
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