Well, isn't that a happy little math problem! Ten tens is 100, and 8 tens is 80. So, 100 is ten tens more than 80. Just imagine those numbers as colorful little trees in your math garden, all adding up perfectly in harmony.
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Oh, dude, let me break it down for you. So, we've got 8 ten thousands (80,000), no thousands, 3 fewer hundreds than ten thousands (800 - 3 = 797), 5 more tens than thousands (70 + 5 = 75), and 2 more ones than hundreds (7 + 2 = 9). Put it all together, and you get the number 80,797. Easy peasy!
619 has.
1,400 = 14 hundreds 50,000 = 5 ten thousands 80 = 8 tens 51,480 = total
There are 8 tens in 80. This is because the number 80 can be broken down into 8 tens and 0 ones. Each group of ten represents a unit value of 10, so 80 can be thought of as 8 groups of ten.
To round 84 to the nearest ten, we look at the digit in the tens place, which is 8. Since 8 is equal to or greater than 5, we round up to the next ten. Therefore, 84 rounded to the nearest ten is 90.