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Resta de números enteros

Resta de números enteros. Subir (+). descansillo “0”. Acción : “moverse en una escalera”. Bajar (-). Signo “+” ≈ “ conjunción “y”. Entre acciones: “varios movimientos”. Signo “-” ≈ ”acción opuesta”. Resta de nº enteros del mismo y de distinto signo.

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Resta de números enteros

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  1. Resta de números enteros Subir (+) descansillo “0” Acción : “moverse en una escalera” Bajar (-) Signo “+” ≈ “conjunción “y” Entre acciones: “varios movimientos” Signo “-” ≈”acción opuesta” • Resta de nº enteros del mismo y de distinto signo “prestamos atención a la regla de los signos” -1 • (-2) - (-1) = (-2) + (+1) = -2 + 1 = “baja 2” “ y haz lo opuesto” “baja 1” “baja 2” y “baja 2” “sube 1” “sube 1” = = = = “baja 1” “baja 4” “baja 2” “sube 9” -2 (+1) + (- 3) = 1 - 3 = • (+1) - (+3) = 0 y “sube 3” “sube 1” “sube 1” “ y haz lo opuesto” “sube 1” “baja 3” “baja 3” (- 3) + (- 1) = - 3 - 1 = -4 • (- 3) - (+1) = -1 y “ y haz lo opuesto” “baja 3” “baja 3” “sube 1” “baja 3” “baja 1” “baja 1” -2 9 • (+7) - (-2) = 7 + 2 = (+7) + (+2) = -4 “sube 7” “baja 2” y “ y haz lo opuesto” “sube 7” “sube 2” “sube 7” “sube 2”

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