(8 x____) x 5 = 8 x ( 20 x 5).. third grade question please help me solve
(8 x____) x 5 = 8 x ( 20 x 5)
(8 x____) x 5 = 800
40n = 800
n = 800/40
n = 20
(8x20)x5=8x(20x5)
To solve this third-grade question, you need to use the associative property of multiplication. According to the property, it doesn't matter how you group the numbers when multiplying; the result will be the same.
In this equation, we have (8 x ____ ) x 5 on the left side and 8 x ( 20 x 5 ) on the right side.
Let's first solve the left side:
(8 x ____ ) x 5
We can ignore the blank at this point and multiply 8 by 5:
8 x 5 = 40
Now we have:
40 x ____
Now let's solve the right side:
8 x ( 20 x 5 )
Inside the parentheses, we multiply 20 by 5:
20 x 5 = 100
Now we have:
8 x 100
Finally, we multiply 8 by 100:
8 x 100 = 800
Therefore, the left side (40 x ____) and the right side (8 x 100) both equal 800.