Linear Addition - Primary Resources

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Linear Addition
There are many ways of adding and taking away.
LINEAR ADDITION is a very reliable method.
34 + 23
34
\
37
57
/ \ /
3
20
The biggest number is placed on the line. The second number is
split into units and tens. The unit number is added first, then
the tens.
The method is still reliable when there is exchange:
26 + 48
48 54 74
\ / \ /
6
20
If you need to, you can use a hundred square to help your
addition.
Now try LINEAR ADDITION with these questions.
1)
25 + 32
2)
56 + 21
3)
44 + 43
4)
36 + 54
5)
22 + 38
6)
38 + 46
7)
49 + 27
8)
68 + 23
9)
85 + 35
10)
28 more than 61
11)
45 add 29
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