Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	999	+		=	1.810
2.	779	+		=	1.273
3.	322	+		=	620
4.	930	+		=	1.525
5.	735	+		=	1.020
6.	909	+		=	1.407
7.	540	+		=	987
8.	673	+		=	1.119
9.	475	+		=	721
10.	986	+		=	1.469

Oefening 2
1.	726	+		=	1.390
2.	891	+		=	1.309
3.	370	+		=	727
4.	991	+		=	1.439
5.	694	+		=	1.361
6.	914	+		=	1.306
7.	964	+		=	1.581
8.	966	+		=	1.446
9.	672	+		=	1.301
10.	937	+		=	1.690

Oefening 3
1.	916	+		=	1.690
2.	677	+		=	1.227
3.	924	+		=	1.378
4.	228	+		=	438
5.	486	+		=	783
6.	597	+		=	1.148
7.	437	+		=	783
8.	913	+		=	1.217
9.	457	+		=	823
10.	267	+		=	525

Oefening 4
1.	909	+		=	1.153
2.	933	+		=	1.468
3.	916	+		=	1.533
4.	938	+		=	1.533
5.	767	+		=	1.062
6.	803	+		=	1.570
7.	850	+		=	1.530
8.	632	+		=	1.160
9.	980	+		=	1.379
10.	677	+		=	1.347

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	999	+	811	=	1.810
2.	779	+	494	=	1.273
3.	322	+	298	=	620
4.	930	+	595	=	1.525
5.	735	+	285	=	1.020
6.	909	+	498	=	1.407
7.	540	+	447	=	987
8.	673	+	446	=	1.119
9.	475	+	246	=	721
10.	986	+	483	=	1.469

Oefening 2
1.	726	+	664	=	1.390
2.	891	+	418	=	1.309
3.	370	+	357	=	727
4.	991	+	448	=	1.439
5.	694	+	667	=	1.361
6.	914	+	392	=	1.306
7.	964	+	617	=	1.581
8.	966	+	480	=	1.446
9.	672	+	629	=	1.301
10.	937	+	753	=	1.690

Oefening 3
1.	916	+	774	=	1.690
2.	677	+	550	=	1.227
3.	924	+	454	=	1.378
4.	228	+	210	=	438
5.	486	+	297	=	783
6.	597	+	551	=	1.148
7.	437	+	346	=	783
8.	913	+	304	=	1.217
9.	457	+	366	=	823
10.	267	+	258	=	525

Oefening 4
1.	909	+	244	=	1.153
2.	933	+	535	=	1.468
3.	916	+	617	=	1.533
4.	938	+	595	=	1.533
5.	767	+	295	=	1.062
6.	803	+	767	=	1.570
7.	850	+	680	=	1.530
8.	632	+	528	=	1.160
9.	980	+	399	=	1.379
10.	677	+	670	=	1.347