Toán Lớp 4: a) 3254 + 146 + 1698
4367 + 199+501
4400 + 2148 + 252
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Toán Lớp 4: a) 3254 + 146 + 1698
4367 + 199+501
4400 + 2148 + 252
Comments ( 2 )
a) 3254 + 146 + 1698
= 3400 + 1698
= 5098
4367 + 199 + 501
= 4566 + 501
= 5067
4400 + 2148 + 252
= 6548 + 252
= 6800
a,
3254 + 146 + 1698
=(3254 + 146) + 1698
=3400 + 1698
=5098
4367 + 199 + 501
=4367 + (199 + 501)
=4367 + 700
=5067
4400 + 2148 + 252
=4400 + (2148 + 252)
=4400 + 2400
=6800