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The answer is 43 and the reason why the tens digit changes is because 7 + anything over 2 will change the digit. If just added 7 + 6 it would be 13 then add 30.
1 + any whole number over 8 will change the tens digit
2 + any whole number over 7 will change the tens digit
3 + any whole number over 6 will change the tens digit
4 + any whole number over 5 will change the tens digit
5 + any whole number over 4 will change the tens digit
6 + any whole number over 3 will change the tens digit
7 + any whole number over 2 will change the tens digit
8 + any whole number over 1 will change the tens digit
9+ any whole number over 0 will change the tens digit
ect
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What happens to the tens digit and ones digit when you add tens?
Well, isn't that just a happy little question! When you add tens to a number, the tens digit increases by one while the ones digit stays the same. It's like adding a little touch of sunshine to your number, making it just a bit bigger and brighter. Just remember to keep those digits happy and balanced as you add those tens!
How do you round 16326 to the nearest ten?
Look at the digit to the right of the tens digit. If it is 5 or more, add one to the digit and add zeros in the end. Otherwise it will be 4 or less and so leave the number alone.
How do you round 9876 to the nearest hundred?
Look at the tens digit. If it is 5 or more, add 100 to 9876. Then replace all the digits to the right of the hundreds digit (the tens and units digits) by zeros. The answer is therefore 9900
What is 4975 to the nearest hundred?
9 is in the hundreds place. The tens digit will determine whether you round this up (in which case it would become 10, which would mean zero and add 1 to the thousands digit). The tens digit is 7, so the 9 rounds up and rounded it is 5000
What computation method would you use to find 23 x 18?
To find the product of 23 and 18, you would use the standard multiplication method. Start by multiplying the units digit of the first number (3) by the units digit of the second number (8), which equals 24. Write down the 4 and carry over the 2. Then, multiply the units digit of the first number by the tens digit of the second number, and vice versa, and add the carried over digit. Finally, multiply the tens digit of the first number by the tens digit of the second number and add it to the total. The result of 23 x 18 is 414.
