Toán Lớp 6: a) – 317 + 402 – 583 + 98
b) – 37. (–19) + 37.( –119)
d) – 200 – (1861 – 655) + 61 – 2655
f) (29 – 9). (– 9) + (–13 – 7). 21
c) (461 –148) – (461 – 80 )
h) 12.( –47) + 12.( –19) + (–66).88
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Toán Lớp 6: a) – 317 + 402 – 583 + 98
b) – 37. (–19) + 37.( –119)
d) – 200 – (1861 – 655) + 61 – 2655
f) (29 – 9). (– 9) + (–13 – 7). 21
c) (461 –148) – (461 – 80 )
h) 12.( –47) + 12.( –19) + (–66).88
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