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Multiplicando… com algoritmo!

Multiplicando… com algoritmo!. 4675x45. 65x46. 465x24. 465 x 24 =. Multiplica a coluna das unidades. Adiciona sempre as dezenas que vão. 4 6 5 X 2 4. 4 6 5 X 2 4. 4 6 5 X 2 4. 4 X 6 = 24. 4 X 4 = 16. 4 X 5 = 20. 24+2 = 26. 16+2 = 18. 0. 6. 0. 18. 6. 0.

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Multiplicando… com algoritmo!

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  1. Multiplicando… com algoritmo! 4675x45 65x46 465x24

  2. 465 x 24 = Multiplica a coluna das unidades. Adiciona sempre as dezenas que vão. • 4 6 5 • X 24 • 4 6 5 • X 24 • 4 6 5 • X 24 4 X 6 = 24 4 X 4 = 16 4 X 5 = 20 24+2 = 26 16+2 = 18 0 6 0 18 6 0 Multiplica a coluna das dezenas. Adiciona sempre as centenas que vão. • 4 6 5 • X 24 • 4 6 5 • X 24 • 4 6 5 • X 24 2 X 4 = 8 1 8 6 0 18 6 0 18 6 0 2 X 6 = 12 8 + 1 = 9 9 3 0 0 3 0 2 X 5 = 10 12 + 1 = 13 11 1 6 0 Soma

  3. Experimenta tu agora. 6 5 5 X 4 8 Multiplicaste 8 x 5? Multiplicaste 8 x 5 e adicionaste 4? Multiplicaste 8 x 6 e adicionaste 4? 5 2 4 0 2 6 2 0 Multiplicaste 4 x 5 ? 3 1 4 4 0 Multiplicaste 4 x 5 e adicionaste 2? Multiplicaste 4 x 6 e adicionaste 2? Finamente, soma.

  4. Experimenta tu agora no caderno. 6 5 7 X 2 6 1 9 3 X 6 7 2 8 5 X 7 3

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