Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	225	+		=	436
2.	920	+		=	1.817
3.	718	+		=	1.410
4.	731	+		=	1.274
5.	928	+		=	1.348
6.	356	+		=	580
7.	939	+		=	1.833
8.	967	+		=	1.549
9.	875	+		=	1.642
10.	807	+		=	1.256

Oefening 2
1.	409	+		=	776
2.	897	+		=	1.590
3.	890	+		=	1.457
4.	963	+		=	1.216
5.	310	+		=	554
6.	867	+		=	1.631
7.	882	+		=	1.666
8.	996	+		=	1.896
9.	785	+		=	1.334
10.	573	+		=	777

Oefening 3
1.	711	+		=	1.040
2.	734	+		=	1.354
3.	490	+		=	943
4.	898	+		=	1.250
5.	904	+		=	1.514
6.	383	+		=	615
7.	406	+		=	629
8.	535	+		=	917
9.	596	+		=	1.093
10.	520	+		=	871

Oefening 4
1.	443	+		=	743
2.	900	+		=	1.149
3.	595	+		=	1.020
4.	871	+		=	1.236
5.	821	+		=	1.239
6.	927	+		=	1.397
7.	305	+		=	559
8.	857	+		=	1.458
9.	993	+		=	1.263
10.	573	+		=	854

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	225	+	211	=	436
2.	920	+	897	=	1.817
3.	718	+	692	=	1.410
4.	731	+	543	=	1.274
5.	928	+	420	=	1.348
6.	356	+	224	=	580
7.	939	+	894	=	1.833
8.	967	+	582	=	1.549
9.	875	+	767	=	1.642
10.	807	+	449	=	1.256

Oefening 2
1.	409	+	367	=	776
2.	897	+	693	=	1.590
3.	890	+	567	=	1.457
4.	963	+	253	=	1.216
5.	310	+	244	=	554
6.	867	+	764	=	1.631
7.	882	+	784	=	1.666
8.	996	+	900	=	1.896
9.	785	+	549	=	1.334
10.	573	+	204	=	777

Oefening 3
1.	711	+	329	=	1.040
2.	734	+	620	=	1.354
3.	490	+	453	=	943
4.	898	+	352	=	1.250
5.	904	+	610	=	1.514
6.	383	+	232	=	615
7.	406	+	223	=	629
8.	535	+	382	=	917
9.	596	+	497	=	1.093
10.	520	+	351	=	871

Oefening 4
1.	443	+	300	=	743
2.	900	+	249	=	1.149
3.	595	+	425	=	1.020
4.	871	+	365	=	1.236
5.	821	+	418	=	1.239
6.	927	+	470	=	1.397
7.	305	+	254	=	559
8.	857	+	601	=	1.458
9.	993	+	270	=	1.263
10.	573	+	281	=	854