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WALHT: Use column addition with decimals

 WALHT: Use column addition with decimals

1. 34.5 + 24.2 = 2. 23.4 + 16.4 = 3. 34.5 + 12.4 =

3	4.	5					2	3.	4					3	4.	5
2	4.	2					1	6.	4					1	2.	4
5	8.	7					3	9.	8					4	6.	9

4. 42.9 + 24.3 = 5. 72.1 + 13.9 = 6. 55.6 + 28.6 =

	1							1						1	1
4	2.	9					7	2.	1					5	5.	6
2	4.	3					1	3.	9					2	8.	6
6	7.	2					8	6.	0					8	4.	2

7. 4.98 + 2.34 = 8. 6.99 + 3.42 = 9. 7.42 + 1.89 =

1	1						1	1						1	1
4.	9	8					6.	9	9					7.	4	2
2.	3	4					3.	4	2					1.	8	9
7.	3	2					0	4	1					9.	3	1

10. 13.45 + 23.22 = 11. 34.22 + 54.64 = 12. 73.89 + 27.45=

														1	1	1
1	3.	4	5				3	4.	2	2				7	3.	8	9
2	3.	2	2				5	4.	6	4				2	7.	4	5
3	6.	6	7				8	8.	8	6			1	0	1.	3	4

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