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

Toán Lớp 6: Tính: a) 93 x 85 + 17 x 45 – 170 b) 491 x (265 + 53) – 491 x (153 + 67) c) 153 x 177 – 153 x 77 + 100 x (-77) d) 24 x (16 – 5) – 16 x (

Home/ Toán Lớp 6: Tính: a) 93 x 85 + 17 x 45 – 170 b) 491 x (265 + 53) – 491 x (153 + 67) c) 153 x 177 – 153 x 77 + 100 x (-77) d) 24 x (16 – 5) – 16 x (

Toán Lớp 6: Tính: a) 93 x 85 + 17 x 45 – 170 b) 491 x (265 + 53) – 491 x (153 + 67) c) 153 x 177 – 153 x 77 + 100 x (-77) d) 24 x (16 – 5) – 16 x (

Tháng Tư 12, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: Tính:
a) 93 x 85 + 17 x 45 – 170
b) 491 x (265 + 53) – 491 x (153 + 67)
c) 153 x 177 – 153 x 77 + 100 x (-77)
d) 24 x (16 – 5) – 16 x (24 – 5)

Comments ( 2 )

  1. ngoclanquynh
    ngoclanquynh
    12 Tháng Tư, 2022 at 12:21 sáng
    Reply
    a) 93 x 85 + 17 x 45 – 170
    =7905+765-170
    =8670-170
    =8500
    b)491 x (265 + 53) – 491 x (153 + 67)
     =491× 318 – 491 × 220 
    =491 × ( 318 – 220 ) 
    =491 × 98
    =48118
    c)153 x 177 – 153 x 77 + 100 x (-77)
    =153×(177-77) + 100 × (-77)
    =153 × 100 + 100 × (-77)
    =[153+(-77)]×100
    =76 × 100
    =7600
    d) 24 x (16 – 5) – 16 x (24 – 5)
    =24×11-16×19
    =264-304
    =(-40)

  2. haiyemy
    haiyemy
    12 Tháng Tư, 2022 at 12:21 sáng
    Reply
    $a) 93 × 85 + 17 × 45 – 170^{}$
    $= 7905 + 765 -170^{}$
    $= 8670 – 170^{}$
    $= 8500^{}$
    $b) 491× (265 + 53) – 491 × (153 + 67)^{}$
    $=491× 318 -491 × 220 ^{}$
    $= 156 138 – 108020 {}$
    $= 48118^{}$
    $c) 153 × 177 – 153 × 77 + 100 × (-77)^{}$
    $= 27081 – 11781 + (-7700)^{}$
    $= 7600^{}$
    $d) 24 × (16 – 5) – 16 × (24 – 5)^{}$
    $=24×11-16×19^{}$
    $=264-304^{}$
    $= (-40)^{}$

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

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