Writing in math use counters. tell how to make 10 when adding 8 5

Counters are an excellent method that children can use in their attempts to master math skills including counting, adding, subtracting, making patterns and comparing numbers.

The given sum = 8+5

To make 10 for adding them, first check which number is nearest to the 10.

We can see the number is 8 which is nearest to 10 in the given sum.

Now, to make a 10 here, we need to add 2 to 8 , and  we subtract 2 from 5 such that the sum would become

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°