Sample Page 71

289. Express each of the following in vertical form, then find the sum.

12 + 12
11 + 14
19 + 11
17 + 12
13 + 16
6 + 13
7 + 11
7 + 21
22 + 5
26 + 3

Illustrative examples for the above
 


13
+ 12
25

 

6
+ 2
29
  

21
+ 8
29
 

290. Express each of the following in vertical form, then find the difference.

Illustrative examples for the above
 
26
- 13
13
 
28
- 6
22
 
27
- 7
20
 


291. The sum of two addends is 28. If one addend is 12, find the other addend.

292. If the minuend is 27, and the difference is 13, find the subtrahend.

293.

14 + 2 = 5
17 = 4 + 3
6 + 12 = 4
13 + 5 = 8
18 = 6 + 9
9 + 13 = 5

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