Das Zahlenbuch 1, Sommertraining, Arbeitsheft

21 1 2 3 Halbieren Immer die Hälfte. Halbiere und vergleiche. 2 8 = + 4 = + 18 = + 2 = 12 = + 14 = + 6 = + 16 = + 10 = + Rechne alle roten Halbierungsaufgaben. 0−0= 2−1= 4− 6−3= 8− 10− 12−6= 14− 16− 18−9= 20− 10–0 11–1 10–1 10–2 10–3 10–4 10–5 10–6 10–� 10–8 10–9 10–10 12–2 11–2 13–3 12–3 11–3 13–4 14–4 12–4 14–5 15–5 11–4 13–5 12–5 11–5 13–6 14–6 15–6 16–6 1�–� 16–� 15–� 12–6 14–� 16–8 1�–8 18–8 19–9 18–9 20–10 19–10 1�–9 15–8 16–9 18–10 13–� 11–6 12–� 13–8 14–8 15–9 1�–10 16–10 14–9 15–10 11–� 12–8 11–8 13–9 12–9 14–10 13–10 11–9 12–10 9–0 8–0 9–1 �–0 8–1 9–2 6–0 �–1 8–2 9–3 5–0 6–1 �–2 8–3 9–4 4–0 5–1 6–2 �–3 8–4 9–5 3–0 4–1 5–2 6–3 �–4 8–5 9–6 2–0 3–1 4–2 5–3 6–4 �–5 8–6 9–� 1–0 2–1 3–2 4–3 5–4 6–5 �–6 8–� 9–8 0–0 1–1 2–2 3–3 4–4 5–5 6–6 �–� 8–8 9–9 11–10 4 Nur zu Prüfzwecken + – Eigentum des Verlags öbv