Use properties in mental math to find the sub of 204 87 three and 16

Answer 1

To find the sum of 204, 87, 3, and 16 using properties of mental math, we can group the numbers in convenient ways.

1. First, we can group 204 and 87: $$204+87=291$$

2. Next, we can add 3 and 16: $$3+16=19$$

3. Now, add the two results together: $$291+19=310$$

Thus, the sum of 204, 87, 3, and 16 is 310.