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

Toán Lớp 6: 2².85+ 15.2²-2020⁰ 123.456+456.231-256.444

Home/ Toán Lớp 6: 2².85+ 15.2²-2020⁰ 123.456+456.231-256.444

Toán Lớp 6: 2².85+ 15.2²-2020⁰ 123.456+456.231-256.444

Tháng Chín 1, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: 2².85+ 15.2²-2020⁰
123.456+456.231-256.444

Comments ( 2 )

  1. khanhlanchau
    khanhlanchau
    1 Tháng Chín, 2022 at 7:15 chiều
    Reply
    Giải đáp:
     $2².85+15.2²-2020^{0}$
    $= 2².(85+15)-1$
    $= 4.100-1$
    $= 400-1$
    $=399$
    $123.456+456.231-256.444$
    $= 456.(123+231)-256.444$
    $= 456.444-256.444$
    $= 444.(456-256)$
    $= 444.200$
    $= 88800$
     

  2. hienthucthu97
    hienthucthu97
    1 Tháng Chín, 2022 at 7:15 chiều
    Reply
    2^2 · 85 + 15 · 2^2 – 2020^0
    = 4 · ( 85 + 15 ) – 1
    = 4 · 100 – 1
    = 400 – 1
    = 399
    123 · 456 + 456 · 231 – 256 · 444
    = 456 · ( 123 + 231 ) – 256 · 444
    = 456 · 354 – 356 · 444
    = 161424 – 158064
    = 3360
        @Zun
     

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

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