write the steps you would follow to find 8 x 5 x 9 using the multiplication properties and multiples of 10
8*5*9 = 4*2*5*9 = 4*10*9 = 36*10 = 360
To find the product of 8 x 5 x 9 using the multiplication properties and multiples of 10, follow these steps:
Step 1: Start by multiplying the digits in the unit place of each number. For 8 x 5, the product is 40. Since both numbers in this step are less than 10, this step does not involve multiples of 10.
Step 2: Multiply the tens place digit of the first number (8) with the units place digit of the last number (9). This gives us 8 x 9 = 72. Again, this step does not involve multiples of 10.
Step 3: Multiply the tens place digit of the first number (8) with the tens place digit of the last number (9). This gives us 8 x 9 = 72.
Step 4: Multiply the units place digit of the first number (5) with the units place digit of the last number (9). This gives us 5 x 9 = 45.
Step 5: Add up the products obtained in steps 1, 2, 3, and 4. 40 + 72 + 72 + 45 = 229.
Step 6: Since all the numbers (8, 5, and 9) are multiples of 10, we need to consider the place value of the product.
The first product we obtained in step 1 (40) has one zero at the end, so it can be considered as 4 tens (40).
The products obtained in steps 2, 3, and 4 are all greater than 10, so they cannot be directly considered as multiples of 10.
Step 7: Multiply the result obtained in step 5 (229) with 10. This gives us 2290.
Step 8: Combine the multiples of 10 from step 7 (2290) with the products obtained from steps 2, 3, and 4.
Adding 2290 (from step 7) with the products 72, 72, and 45 gives us: 2290 + 72 + 72 + 45 = 2479.
Therefore, 8 x 5 x 9 = 2479 using the multiplication properties and multiples of 10.