🌻 Adunarea de la 0 la1 000 cu trecere peste ordinul zecilor.
1. Calculează, descompunând numerele în sute, zeci și unități, după modelul dat.
Model: 654 + 281 = 600 + 50 + 4 + 200 + 80 + 1
= (600 + 200) + (50 + 80) + (4 + 1)
= 800 + 130 + 5
= 800 + 100 + 30 + 5
= 900 + 30 + 5
= 935
a) 361 + 464 = b) 64 + 164 = c) 685 + 221 =
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598 + 252 = 281 + 323 = 654 + 175 =
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345 + 175 = 546 + 182 = 455 + 273 =
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