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

Toán Lớp 6: a 3 X 10 mũ 3+2 X 10 mũ 2+5 X 10 b 35-2X1 mũ 111+3X7X7 mũ 2 c 5×4 mũ 3+2×3-81×2+7

Toán Lớp 6: a 3 X 10 mũ 3+2 X 10 mũ 2+5 X 10
b 35-2X1 mũ 111+3X7X7 mũ 2
c 5×4 mũ 3+2×3-81×2+7

Comments ( 2 )

  1. Giải đáp:
    a) 3250
    b) 1062
    c) 171
    Lời giải và giải thích chi tiết:
    a) 3\times10^3+2\times10^2+5\times10
    =3\times1000+2\times100+5\times10
    =3000+200+50
    =3250
    b) 35-2\times1^111+3\times7\times7^2
    =35-2\times1+3\times7^3
    =35-2+3\times343
    =33+1029
    =1062
    c) 5\times4^3+2\times3-81\times2+7
    =5\times64+6-162+7
    =320+6-162+7
    =326-162+7
    =164+7
    =171

  2. #laviken#
    a) 3.10^3+2.10^2+5.10
    =3.1000+2.100+5.10
    =3000 + 200 + 50
    =3250
    b)35-2.1^111+3.7.7^2
    =35-2.1+3.7^(1+2)
    =35-2 + 343
    =1062
    c)5.4^3+2.3-81.2+7
    =5.64+6-162+7
    =320+6-162+7
    =171

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