Key Idea1 of 3
The Make-a-Ten Strategy
To add 8 + 5, first make 10. Take 2 from the 5 and give it to the 8. Now you have 10 + 3 = 13! Making a ten makes adding easier.
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Math — Addition to 20
To add 8 + 5, first make 10. Take 2 from the 5 and give it to the 8. Now you have 10 + 3 = 13! Making a ten makes adding easier.