Question

1. 7 − [2 · 9 − (4 + 13) + 4 : 2] =

2. [(+3) − (+5) + (+4)] : [(+15) : (−3) − (−7)] =

3. 42 : [(−6) − (−3)] + 28 : [−6 − (−8)] =

4. 74 : 14 − 3 · [10 − 2(8 − 3)] =

5. 10 − [6 − (−5 + 4) − 2] + 1 =

6. (42 + 20) : 4 − 2 · (9 : 3) − 2 · [18 + 3 · (13 − 9) − 5] =

7. −8 · [5 − (−2)] − 48 : [6 + (−14)] − 11 · [10 + (−7)] + 36 : [(−1) − (−10)] =​

Answer 1

1. 7−((2)(9)−(4+13)+(4)(2))

=7−(18−(4+13)+(4)(2))

=7−(18−17+(4)(2))

=7−(1+(4)(2))

=7−(1+8)

=7−9

=−2

2.(3−5+4)((15)(−3)−(−7))

=(−2+4)((15)(−3)−(−7))

=2((15)(−3)−(−7))

=2(−45−(−7))

=(2)(−38)

=−76

3.42(−6−(−3))+28(−6−(−8))

=(42)(−3)+28(−6−(−8))

=−126+28(−6−(−8))

=−126+(28)(2)

=−126+56

=−70

4.(74)(14)−3(10−2(8−3))

=1036−3(10−2(8−3))

=1036−3(10−(2)(5))

=1036−3(10−10)

=1036−(3)(0)

=1036−0

=1036

5.10−(6−(−5+4)−2)+1

=10−(6−(−1)−2)+1

=10−(7−2)+1

=10−5+1

=5+1

=6

6.(42+20)(4)−2(9)(3)−2(18+3(13−9)−5)

=(62)(4)−2(9)(3)−2(18+3(13−9)−5)

=248−2(9)(3)−2(18+3(13−9)−5)

=248−(2)(27)−2(18+3(13−9)−5)

=248−54−2(18+3(13−9)−5)

=194−2(18+3(13−9)−5)

=194−2(18+(3)(4)−5)

=194−2(18+12−5)

=194−2(30−5)

=194−(2)(25)

=194−50

=144

7.−8(5−(−2))−48(6−14)−11(10−7)+36(−1−(−10))

=(−8)(7)−48(6−14)−11(10−7)+36(−1−(−10))

=−56−48(6−14)−11(10−7)+36(−1−(−10))

=−56−(48)(−8)−11(10−7)+36(−1−(−10))

=−56−(−384)−11(10−7)+36(−1−(−10))

=328−11(10−7)+36(−1−(−10))

=328−(11)(3)+36(−1−(−10))

=328−33+36(−1−(−10))

=295+36(−1−(−10))

=295+(36)(9)

=295+324

=619

ESPERO QUE TE SIRVA CORONA