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3,45x0,99+3,45:100+3,45x99
=3,45 x (0,99 + 99) + 3,45 : 100
=3,45 x 0 + 0.0345
= 0.0345
Chúc em học tốt ^^
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3,45 x 0,99 + 3,45:100
= 3,45 x (0,99+100)
= 3,45 x 100,99
= 348,4155
3,45x0,99+3,45:100
=3,45x0,99+3,45x0,1
=3,45x[0,99+0,1]
=3,45x1
=3,45
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3,45 x ( 100 + 0,99 )
= 3,45 x 100,99
= 348,105
Đáp số : 348,105
3,45 x 99/100 + 3.45 x1/100
=3,45x(99/100+1/100)
=3,45x1
=3,45
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a , 11 , 2 − 7 , 63 + 8 , 8 − 2 , 37 = 11 , 2 + 8 , 8 ⏟ − 7 , 63 + 2 , 37 ⏟ = 20 − 10 = 10 b , 3 , 45 × 123 + 4 × 3 , 45 − 3 , 45 × 27 = 3 , 45 × 123 + 4 − 3 , 45 × 27 = 3 , 45 × 127 − 3 , 45 × 27 = 3 , 45 × 127 − 27 = 3 , 45 × 100 = 345
3,45 x 0,99 + 3,45 x 0,01
= 3,45 x ( 0,99 + 0,01 )
= 3,45 x 1
= 3,45
3,45x 0,99 +3,45x 0,01
3 ,45 x (0,99+ 0,01)
3 ,45 x 1 = 3,45