Question

7+8=15 how do you decompose 10?I'm doing this for my granddaughter she's in the first grade and the teacher wants to know her dude examples 7 + 8 equals 15 and they want her to decompose it to make 10 then and use the number bond to show how you took two

Answer 1

To decompose 10 on basis of 8 it becomes 10 -2 =8

so 8 + 2 =10