Find the answer using number line:
Silvia brought 17 toffees from a candy store. In 5 days she ate a total of 8 toffees. The number of toffees left with her .
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Solution
Silvia had 17 toffees.
She ate total 8 toffees.
Number of toffees left with her =17−8
Let's subtract 8 from 17 using number line with the help of Burgy
Burgy starts at 17, he jumps 8 hops of 1 unit each and reaches 9
Thus, 17 - 8 = 9
Finally, she has 9 toffees.