Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	421	+		=	768
2.	995	+		=	1.449
3.	974	+		=	1.554
4.	779	+		=	1.532
5.	795	+		=	1.456
6.	855	+		=	1.374
7.	869	+		=	1.596
8.	446	+		=	757
9.	708	+		=	1.172
10.	844	+		=	1.637

Oefening 2
1.	797	+		=	1.457
2.	714	+		=	1.414
3.	934	+		=	1.252
4.	621	+		=	1.152
5.	897	+		=	1.342
6.	434	+		=	689
7.	528	+		=	865
8.	518	+		=	736
9.	901	+		=	1.479
10.	900	+		=	1.164

Oefening 3
1.	868	+		=	1.136
2.	664	+		=	897
3.	772	+		=	1.361
4.	657	+		=	1.189
5.	517	+		=	895
6.	967	+		=	1.234
7.	363	+		=	659
8.	468	+		=	790
9.	266	+		=	530
10.	871	+		=	1.235

Oefening 4
1.	590	+		=	989
2.	821	+		=	1.049
3.	843	+		=	1.256
4.	951	+		=	1.298
5.	629	+		=	972
6.	512	+		=	789
7.	283	+		=	531
8.	784	+		=	1.069
9.	988	+		=	1.820
10.	772	+		=	1.473

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	421	+	347	=	768
2.	995	+	454	=	1.449
3.	974	+	580	=	1.554
4.	779	+	753	=	1.532
5.	795	+	661	=	1.456
6.	855	+	519	=	1.374
7.	869	+	727	=	1.596
8.	446	+	311	=	757
9.	708	+	464	=	1.172
10.	844	+	793	=	1.637

Oefening 2
1.	797	+	660	=	1.457
2.	714	+	700	=	1.414
3.	934	+	318	=	1.252
4.	621	+	531	=	1.152
5.	897	+	445	=	1.342
6.	434	+	255	=	689
7.	528	+	337	=	865
8.	518	+	218	=	736
9.	901	+	578	=	1.479
10.	900	+	264	=	1.164

Oefening 3
1.	868	+	268	=	1.136
2.	664	+	233	=	897
3.	772	+	589	=	1.361
4.	657	+	532	=	1.189
5.	517	+	378	=	895
6.	967	+	267	=	1.234
7.	363	+	296	=	659
8.	468	+	322	=	790
9.	266	+	264	=	530
10.	871	+	364	=	1.235

Oefening 4
1.	590	+	399	=	989
2.	821	+	228	=	1.049
3.	843	+	413	=	1.256
4.	951	+	347	=	1.298
5.	629	+	343	=	972
6.	512	+	277	=	789
7.	283	+	248	=	531
8.	784	+	285	=	1.069
9.	988	+	832	=	1.820
10.	772	+	701	=	1.473