32 Questions
What is the purpose of estimating in calculations?
To make quick decisions and check the reasonableness of results
When estimating products, what is a good rule of thumb?
Round to the nearest thousand
What is the main advantage of using column addition?
It makes addition easier and more accurate
What is the purpose of compensating when rounding off numbers?
To adjust for rounding errors
What is the borrowing technique used for in subtraction?
To rearrange parts to make subtraction easier
What is the main advantage of using multiplication in parts?
It breaks down the multiplication into smaller parts
What is the purpose of carrying over in multiplication?
To write down the partial product and carry over extra values to the next column
What is the main advantage of using long division?
It breaks down the division into smaller, manageable steps
What is the benefit of rounding numbers to the nearest ten, hundred, or thousand?
To simplify calculations
When using column addition, what do you do when the sum of a column is greater than the place value?
Carry over the extra value to the next column
What is the purpose of breaking down numbers into parts in multiplication?
To multiply each part separately and add the results
What do you do when subtracting corresponding parts of the numbers in subtraction by parts?
Subtract the corresponding parts
What is the purpose of using expanded notation in addition?
To break down numbers into parts and add each part separately
What do you do when the divisor is greater than the dividend in long division?
Write a zero in the quotient and bring down the next digit
What is the benefit of using multiples of a thousand when estimating products?
To simplify the product
What do you do when the result of a calculation is not reasonable?
Check the calculation for errors
When estimating sums, what would be the most accurate way to simplify the calculation?
Round numbers to the nearest hundred
What is the primary advantage of using the column addition method?
It ensures accurate calculations with large numbers
When using the multiplication in parts method, what should you do with the partial products?
Add them together to get the final answer
What is the primary purpose of breaking down numbers into parts in subtraction?
To simplify the calculation
When using long division, what should you do when the remainder is greater than the divisor?
Bring down the next digit
What is the main advantage of using expanded notation in addition?
It makes it easier to add large numbers
When compensating for rounding errors, what should you do?
Subtract the rounding error from the estimate
What is the primary purpose of using the borrowing technique in subtraction?
To simplify the subtraction process
When estimating the sum of 542 and 279, what is the best approach?
Round 542 to 500 and 279 to 300
What is the primary reason for compensating when rounding off numbers?
To correct for the error introduced by rounding
When using the multiplication in parts method, what should be done with the partial products?
Add them together to get the final result
What is the primary advantage of using column subtraction?
It helps to organize the numbers by place value
When using long division, what should be done when the remainder is zero?
Stop the division and write the result
What is the main advantage of using expanded notation in addition?
It helps to organize the numbers by place value
When estimating the product of 47 and 219, what is the best approach?
Round 47 to 50 and 219 to 200
What is the primary purpose of breaking down numbers into parts in subtraction?
To organize the numbers by place value
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