Divisibilidad - Cepasanfrancisco.edurioja.org

More documents

Recommendations

Info

1Soluciones a las actividades de cada epígrafe 17 Calcula. a) (–28) : [(+12) : (–3)] b)[(–45) : (+3)] : (+5) c) (–100) : [(–36) : (–9)] d)[(–72) : (+9)] : (–8) a) (–28) : [(+12) : (–3)] = (–28) : [–4] = +7 b) [(–45) : (+3)] : (+5) = [–15] : (+5) = –3 c) (–100) : [(–36) : (–9)] = (–100) : [+4] = –25 d) [(–72) : (+9)] : (–8) = [–8] : (–8) = +1 18 Calcula siguiendo el ejemplo. • [(–8) · (+9)] : [(+6) · (–3)] = [–72] : [–18] = +4 –72 –18 +4 a) [(+5) · (–8)] : [(–2) · (–5)] b)[(+28) : (–7)] · [(+20) : (–4)] c) [(–10) : (+5)] : [(–28) : (+4)] a) [(+5) · (–8)] : [(–2) · (–5)] = [–40] : [+10] = –4 b) [(+28) : (–7)] · [(+20) : (–4)] = [–4] · [–5] = +20 c) [(–10) : (+5)] : [(–28) : (+4)] = [–2] : [–7] = +2/7 19 Calcula como en el ejemplo. • 15 – 8 · 3 = 15 – 24 = –9 a) 18 – 5 · 3 a) 18 – 5 · 3 = 18 – 15 = 3 b) 6 – 4 · 2 = 6 – 8 = –2 c) 7 · 2 – 16 = 14 – 16 = –2 b)6 – 4 · 2 c) 7 · 2 – 16 20 Calcula. a) 18 – 15 : 3 a) 18 – 15 : 3 = 18 – 5 = 13 b) 3 – 30 : 6 = 3 – 5 = –2 b)3 – 30 : 6 c) 20 : 2 – 11 c) 20 : 2 – 11 = 10 – 11 = –1 Unidad 1. <strong>Divisibilidad</strong> y números enteros Pág. 14
1Soluciones a las actividades de cada epígrafe 21 Calcula como en el ejemplo. • 21 – 4 · 6 + 12 : 3 = 21 – 24 + 4 = 25 – 24 = 1 a) 20 – 4 · 7 + 11 b)12 – 6 · 5 + 4 · 2 c) 15 – 20 : 5 – 3 d)6 – 10 : 2 – 14 : 7 e) 5 · 3 – 4 · 4 + 2 · 6 f) 7 · 3 – 5 · 4 + 18 : 6 a) 20 – 4 · 7 + 11 = 20 – 28 + 11 = 31 – 28 = 3 b) 12 – 6 · 5 + 4 · 2 = 12 – 30 + 8 = 20 – 30 = –10 c) 15 – 20 : 5 – 3 = 15 – 4 – 3 = 15 – 7 = 8 d) 6 – 10 : 2 – 14 : 7 = 6 – 5 – 2 = 6 – 7 = –1 e) 5 · 3 – 4 · 4 + 2 · 6 = 15 – 16 + 12 = 27 – 16 = 11 f) 7 · 3 – 5 · 4 + 18 : 6 = 21 – 20 + 3 = 24 – 20 = 4 22 Observa el ejemplo y calcula. • (–3) · (–4) + (–6) · 3 = (+12) + (–18) = 12 – 18 = –6 a) 5 · (–8) – (+9) · 4 b)32 : (–8) – (–20) : 5 c) (–2) · (–9) + (–5) · (+4) d)(+25) : (–5) + (–16) : (+4) e) (+6) · (–7) + (–50) : (–2) f) (+56) : (–8) – (–12) · (+3) a) 5 · (–8) – (+9) · 4 = (–40) – (+36) = –40 – 36 = –76 b) 32 : (–8) – (–20) : 5 = (–4) – (–4) = –4 + 4 = 0 c) (–2) · (–9) + (–5) · (+4) = (+18) + (–20) = 18 – 20 = –2 d) (+25) : (–5) + (–16) : (+4) = (–5) + (–4) = –5 – 4 = –9 e) (+6) · (–7) + (–50) : (–2) = (–42) + (+25) = –42 + 25 = –17 f) (+56) : (–8) – (–12) · (+3) = (–7) – (–36) = –7 + 36 = 29 23 Calcula. a) 18 – 5 · (3 – 8) b)11 – 40 : (–8) c) 4 · (8 – 11) – 6 · (7 – 9) d)(4 – 5) · (–3) – (8 – 2) : (–3) a) 18 – 5 · (3 – 8) = 18 – 5 · (–5) = 18 – (–25) = 18 + 25 = 43 b) 11 – 40 : (–8) = 11 – (–5) = 11 + 5 = 16 c) 4 · (8 – 11) – 6 · (7 – 9) = 4 · (–3) – 6 · (–2) = (–12) – (–12) = –12 + 12 = 0 d) (4 – 5) · (–3) – (8 – 2) : (–3) = (–1) · (–3) – (+6) : (–3) = (+3) – (–2) = 3 + 2 = 5 Unidad 1. <strong>Divisibilidad</strong> y números enteros Pág. 15
Page 1 and 2: 1Soluciones a los ejercicios y prob
Page 15 and 16: 1Soluciones a las actividades de ca
Page 27: 1Soluciones a las actividades de ca

Divisibilidad - Cepasanfrancisco.edurioja.org

Create successful ePaper yourself

Delete template?

Save as template?