Question

Bỏ ngoặc rồi tính:

c, 126 - (126 - 33)=

d, (-53 - 23) - (567 - 53) =

e, 145 - (23 - 45) - (-23 - 10) =

Answer 1

c, 126 - (126 - 33)=126-126+33=33

d, (-53 - 23) - (567 - 53) =-76-567+53=-590

e, 145 - (23 - 45) - (-23 - 10) =145+22+33=200

Answer 2

 126 - ( 126 -33) = 126 -126 + 33 = 33

(-53-23)-(567-53)= -76 -567 + 53 = -590

145 - ( 23 -45) -( -23 -10) = 145 -23 + 45 +23 + 10= 200

Answer 3

c)= 126 - 126 + 33= 33

d) = -53 - 23 - 567 + 53 = (-53 + 53) - (23 + 567) =0 - 590 = -590

e)= 145 - 23 + 45 + 23 + 10= 145 + (-23 + 23 ) + (45 + 10)= 145 + 0+55= 145 + 55 =200

Answer 4

c) 126 -126+33

=0+33

=33

d) -53-23-567+53

=(-53+53)+(-23-567)

=0+-590

=-590

e)145-23+45+23+10

=(145+45)+(-23+23)+10

=200

Answer 5

c, 126 - (126 - 33)=126-126+33=33

d, (-53 - 23) - (567 - 53) =-53-23-567+53=-590

e, 145 - (23 - 45) - (-23 - 10) =145-23+45+23+10=200

Answer 6

c,126-126-33=0-33=-33

d,-53-23-567-53= -76-567-53=-643-53=-696

e,145-23-45+23-10=122-45+23-10=77+23-10=100-10=90

Answer 7

126 - ( 126 -33) = 126 -126 + 33 = 33

(-53-23)-(567-53)= -76 -567 + 53 = -590

145 - ( 23 -45) -( -23 -10) = 145 -23 + 45 +23 + 10= 200