Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	330	+		=	635
2.	295	+		=	565
3.	957	+		=	1.549
4.	829	+		=	1.563
5.	978	+		=	1.626
6.	538	+		=	1.059
7.	391	+		=	682
8.	646	+		=	1.123
9.	940	+		=	1.293
10.	917	+		=	1.406

Oefening 2
1.	643	+		=	1.061
2.	763	+		=	1.201
3.	329	+		=	581
4.	925	+		=	1.133
5.	917	+		=	1.355
6.	866	+		=	1.101
7.	654	+		=	1.266
8.	806	+		=	1.229
9.	976	+		=	1.548
10.	926	+		=	1.472

Oefening 3
1.	925	+		=	1.217
2.	577	+		=	890
3.	911	+		=	1.820
4.	991	+		=	1.332
5.	520	+		=	771
6.	676	+		=	1.152
7.	359	+		=	673
8.	706	+		=	923
9.	782	+		=	1.506
10.	904	+		=	1.543

Oefening 4
1.	651	+		=	1.062
2.	516	+		=	1.019
3.	734	+		=	1.043
4.	706	+		=	1.380
5.	588	+		=	1.090
6.	513	+		=	740
7.	573	+		=	1.043
8.	531	+		=	760
9.	680	+		=	1.173
10.	798	+		=	1.446

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	330	+	305	=	635
2.	295	+	270	=	565
3.	957	+	592	=	1.549
4.	829	+	734	=	1.563
5.	978	+	648	=	1.626
6.	538	+	521	=	1.059
7.	391	+	291	=	682
8.	646	+	477	=	1.123
9.	940	+	353	=	1.293
10.	917	+	489	=	1.406

Oefening 2
1.	643	+	418	=	1.061
2.	763	+	438	=	1.201
3.	329	+	252	=	581
4.	925	+	208	=	1.133
5.	917	+	438	=	1.355
6.	866	+	235	=	1.101
7.	654	+	612	=	1.266
8.	806	+	423	=	1.229
9.	976	+	572	=	1.548
10.	926	+	546	=	1.472

Oefening 3
1.	925	+	292	=	1.217
2.	577	+	313	=	890
3.	911	+	909	=	1.820
4.	991	+	341	=	1.332
5.	520	+	251	=	771
6.	676	+	476	=	1.152
7.	359	+	314	=	673
8.	706	+	217	=	923
9.	782	+	724	=	1.506
10.	904	+	639	=	1.543

Oefening 4
1.	651	+	411	=	1.062
2.	516	+	503	=	1.019
3.	734	+	309	=	1.043
4.	706	+	674	=	1.380
5.	588	+	502	=	1.090
6.	513	+	227	=	740
7.	573	+	470	=	1.043
8.	531	+	229	=	760
9.	680	+	493	=	1.173
10.	798	+	648	=	1.446