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

Toán Lớp 6: (-87)+126+187+74 35+(-7)×9+210-135+63 -329+(115-101)-15-440 -(-171+89+223)-71-105-111+223 Giúp mình với

Toán Lớp 6: (-87)+126+187+74
35+(-7)×9+210-135+63
-329+(115-101)-15-440
-(-171+89+223)-71-105-111+223
Giúp mình với

Comments ( 2 )

  1. mik gửi bn câu trả lời nhá !!!
     

    toan-lop-6-87-126-187-74-35-7-9-210-135-63-329-115-101-15-440-171-89-223-71-105-111-223-giup-min

  2. 1, (-87)+126+187+74
    = ( 187 – 87 ) + 126 + 74
    = 100 + 200
    = 300
    2, 35+(-7)×9+210-135+63
    = ( – 135 + 35 ) + ( -63 + 63 ) + 210
    = -100 + 0 + 210
    = 110
    3, -329+(115-101)-15-440
    = -329 + 115-101 -15-440
    = ( 115 – 15 ) +( -329 – 101 ) – 440
    = 100 – 430 – 440
    = – 770
    4, – ( -171+89+223)-71-105 -111 + 223
    = 171 – 89 – 223 – 71 – 105 – 111 + 223
    = ( 171 – 71 ) + ( -223 + 223 ) -105 – 89
    = 100 – 105 – 89
    = -94
     

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

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