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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: Bài8 : Tínhhợplý. a. 4567 + (1234 – 4567) -4 b. 2001 – (53 + 1579) – (-53) c. 35 – 17 + 2017 – 35 + (-2017) d. 37 + (

Home/ Toán Lớp 6: Bài8 : Tínhhợplý. a. 4567 + (1234 – 4567) -4 b. 2001 – (53 + 1579) – (-53) c. 35 – 17 + 2017 – 35 + (-2017) d. 37 + (

Toán Lớp 6: Bài8 : Tínhhợplý. a. 4567 + (1234 – 4567) -4 b. 2001 – (53 + 1579) – (-53) c. 35 – 17 + 2017 – 35 + (-2017) d. 37 + (

Tháng Tư 14, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: Bài8 : Tínhhợplý.
a. 4567 + (1234 – 4567) -4
b. 2001 – (53 + 1579) – (-53)
c. 35 – 17 + 2017 – 35 + (-2017)
d. 37 + (-17) – 37 + 77
e. –(-219) + (-219) – 401 + 12
g. 11.107 + 11.18 – 25.11
h. 115 – (-85) + 53 – (-500 + 53)
k. (-18) + (-31) + 98 + |-18| + (-69)
l. 17. (15 – 16) + 16.(17 – 20)
m. 15.(-176) + 15.76 + 100.15
n. 79.89 – 79.(-11) – 100.79
o. 153.177 – 153.77 + 100.(-77)
q. (-29).(85 – 47) – 85.(47 – 29)
r. (-167).(67 – 34) – 67.(34 – 167)

Comments ( 2 )

  1. kimoanh34
    kimoanh34
    14 Tháng Tư, 2023 at 9:19 sáng
    Reply
    $ a) 4567 + (1234 – 4567) – 4 = 4567 + 1234 – 4567 – 4 = ( 4567 – 4567 ) + ( 1234 – 4 ) = 0 + 1230 = 1230 $
    $ b) 2001 – ( 53 + 1579 ) – ( -53 ) = 2001 – 53 – 1579 + 53 = ( 2001 – 1579 ) + ( -53 + 53 ) = 422 + 0 = 422 $ 
    $ c) 35 – 17 + 2017 – 35 + ( -2017 ) = ( 35 – 35 ) – 17 + [ 2017 + ( -2017 ) ] = 0 – 17 + 0 = -17 $ 
    $ d) 37 + ( -17 ) – 37 + 77 = ( 37 – 37 ) + [ ( -17 ) + 77 ] = 0 + 60 = 60 $ 
    $ e) – ( -219 ) + ( -219 ) – 401 + 12 = [ 219 + ( -219 ) ] – ( 401 – 12 ) = 0 – 389 = -389 $ 
    $ g) 11 . 107 + 11 . 18 – 25 . 11 = 11 . ( 107 + 18 – 25 ) = 11 . 100 = 1100 $ 
    $ h) 115 – ( -85 ) + 53 – ( -500 + 53 ) = 115 + 85 + 53 + 500 – 53 = ( 115 + 85 ) + ( 53 – 53 ) + 500 = 200 + 0 + 500 = 700 $ 
    $ k) ( -18 ) + ( -31 ) + 98 + | -18 | + ( -69 ) = ( -18 ) + [ ( -31 ) + ( -69 ) ] + 18 + 98 = [ ( -18 ) + 18 ] + ( -100 ) + 98 = 0 + ( -100 ) + 98 = ( -2 ) $

  2. thanhtung
    thanhtung
    14 Tháng Tư, 2023 at 9:19 sáng
    Reply
    a) 4567 + (1234 – 4567) – 4 = 4567 + 1234 – 4567 – 4 = ( 4567 – 4567 ) + ( 1234 – 4 ) = 0 + 1230 = 1230
    b)2001−(53+1579)−(−53)=2001−53−1579+53=(2001−1579)+(−53+53)=422+0=422
    c)35−17+2017−35+(−2017)=(35−35)−17+[2017+(−2017)]=0−17+0=−17
    d)37+(−17)−37+77=(37−37)+[(−17)+77]=0+60=60

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222-9+11+12:2*14+14 = ? ( )

Kim Duyên

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