The product of 0.031 and 1,000,000 is ___ because the decimal point in 0.031 moves ___ places to the right. (The answers are 310, 3,100, 31,000, and 310,000 for the first one. For the second one it is 4-7 (4,5,6,7).)

The product of 0.031 and 1,000,000 is 31,000.
Because the decimal point in 0.031 moves 3 places to the right.
Solution:
Given numbers are 0.031 and 1,000,000.
To find the product of the numbers:
The product of 0.031 and 1,000,000
= 0.031 × 1,000,000
= 31000.000
= 31,000
The product of 0.031 and 1,000,000 is 31,000.
Because the decimal point in 0.031 moves 3 places to the right.
Note:
The number of digits after the decimal point is 3, so the digits move 3 places to the right after the product.