Toán Lớp 6: a, A = 2022 + 3 . 2021 + 3180
b, B = 3. 6 . 9 + 4 . 8 .12
c, C = 3. 6 . 7 – 17 . 7
d, D = 42 .27 – 21 . 54
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Toán Lớp 6: a, A = 2022 + 3 . 2021 + 3180
b, B = 3. 6 . 9 + 4 . 8 .12
c, C = 3. 6 . 7 – 17 . 7
d, D = 42 .27 – 21 . 54
Comments ( 2 )
a)A=2022+3.2021+3180
=2022+6063+3180
=11265
b)B=3.6.9+4.8.12
=162+384
=546
c)C=3.6.7-17.7
=18.7-17.7
=7.(18-17)
=7
d)D=42.27-21.54
=6.7.3.9-3.7.6.9
=0 xin tlhn+5sao^^