Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	431	+		=	645
2.	938	+		=	1.298
3.	574	+		=	974
4.	946	+		=	1.869
5.	994	+		=	1.896
6.	858	+		=	1.357
7.	937	+		=	1.448
8.	961	+		=	1.620
9.	813	+		=	1.342
10.	995	+		=	1.762

Oefening 2
1.	371	+		=	692
2.	772	+		=	1.449
3.	991	+		=	1.532
4.	672	+		=	1.218
5.	989	+		=	1.854
6.	915	+		=	1.132
7.	896	+		=	1.141
8.	615	+		=	1.035
9.	859	+		=	1.148
10.	715	+		=	1.122

Oefening 3
1.	811	+		=	1.362
2.	792	+		=	1.131
3.	476	+		=	866
4.	460	+		=	853
5.	642	+		=	1.202
6.	666	+		=	1.193
7.	740	+		=	1.251
8.	476	+		=	911
9.	981	+		=	1.863
10.	790	+		=	1.271

Oefening 4
1.	882	+		=	1.548
2.	874	+		=	1.374
3.	708	+		=	1.398
4.	973	+		=	1.756
5.	988	+		=	1.340
6.	884	+		=	1.444
7.	859	+		=	1.376
8.	860	+		=	1.205
9.	740	+		=	1.435
10.	388	+		=	616

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	431	+	214	=	645
2.	938	+	360	=	1.298
3.	574	+	400	=	974
4.	946	+	923	=	1.869
5.	994	+	902	=	1.896
6.	858	+	499	=	1.357
7.	937	+	511	=	1.448
8.	961	+	659	=	1.620
9.	813	+	529	=	1.342
10.	995	+	767	=	1.762

Oefening 2
1.	371	+	321	=	692
2.	772	+	677	=	1.449
3.	991	+	541	=	1.532
4.	672	+	546	=	1.218
5.	989	+	865	=	1.854
6.	915	+	217	=	1.132
7.	896	+	245	=	1.141
8.	615	+	420	=	1.035
9.	859	+	289	=	1.148
10.	715	+	407	=	1.122

Oefening 3
1.	811	+	551	=	1.362
2.	792	+	339	=	1.131
3.	476	+	390	=	866
4.	460	+	393	=	853
5.	642	+	560	=	1.202
6.	666	+	527	=	1.193
7.	740	+	511	=	1.251
8.	476	+	435	=	911
9.	981	+	882	=	1.863
10.	790	+	481	=	1.271

Oefening 4
1.	882	+	666	=	1.548
2.	874	+	500	=	1.374
3.	708	+	690	=	1.398
4.	973	+	783	=	1.756
5.	988	+	352	=	1.340
6.	884	+	560	=	1.444
7.	859	+	517	=	1.376
8.	860	+	345	=	1.205
9.	740	+	695	=	1.435
10.	388	+	228	=	616