I will mark you as the brainleist Please it is urgent with explanation
Answers
Step-by-step explanation:
Q8) a. (-7) + (-9) + 4 +15= -7 - 9 + 4 + 15 = -16 + 19 = 3
b. (37) + (-2) + (-65) + (-11) = 37 - 2 - 65 - 11 = 37 - 78 = -41 ( as you know we add all the negative terms in a question)
c. 23 + (-7) + (-45) + (-25) = 23 - 7 - 45 - 25 = 23 - 77 = -54 (here also we had added the negative terms)
d. 44 + 5 + (-60) + (-55) = 44 + 5 - 60 - 55 = 49 - 115 = -66 ( here we added 44 & 5 and -60 & -55)
e. 44 + (-20) + (-33) + (-20) = 44 - 20 - 33 - 20 = 44 - 73 = -29 ( here aslo we added the negative terms)
Q9) a. 35 - (20) = 35 - 20 = 15
b. (-15) – (-18) = -15 + 18 = 3 ( here the minus+minus=plus is used)
c. (-20) - 13 = -20 - 13 = -7 (here both numbers have minus in front of them so we will add them)
d. 23 - (-12) = 23 + 12 = 35 (here also the rule minus+minus=plus is used)
e. (-7) -8 - (-25) = -7 - 8 + 25 = -15 + 25 = 10 (here also 7 and 8 have minus in front of them so we added them)
f. (-7) + (-8) + (-90) = -7 - 8 - 90 = -7 - 98 = -105 (here also we added the negative terms)
g. 50 - (-40) - (-25) = 50 + 40 + 25 = 115 (here also the rule minus+minus=plus is used)
Q10) a. 25 b. 33 c. -212
Q11) a. 0 × (-20) = 0
b. (-8) × (-7) = 56 ( in multiplication and division if both the numbers are negative then answer will be positive)
c. 7 × (-5) × (-21) = 7 × 105 = 735
d. 15 × (-4) × (-6) × (-1) = 15 × (-4) × 6 = 15 × -24 = - -360 (if there are odd numbers of terms having minus before them then one of the number will remain negative)
Friend I have to leave but I am telling you the rules
minus + minus = plus
minus + plus = minus
plus + plus = plus
plus + minus = minus
MEANS
negative + negative = positive
negative + positive = negative
positive + positive = positive
positive + negative = negative
I am leaving because I have to prepare for my online exams that are after two weeks.
Hope Maine aapko jitna bataya hai utna apki help karega. If any problem you can ask any time.
Bye, Have a nice day