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Rounding
Comparing
Representation
Forms
Open-Ended Questions
100
Round 15 to the nearest ten
What is 20
100
Which is larger? 71 or 17
What is 71
100
What does the 1 in 910 represent?
What is 1 ten
100
Show 56 in expanded form
What is 50+6
100
How do you know what the 1 in 17 means?
What is it represents the tens place because you know that the number on the far right is the ones place and the digit in the place to the left of that is the tens place. Since there is a 1 in that location, there is 1 group of ten in this number.
200
Round 167 to the nearest ten
What is 170
200
Which is larger? 891 or 819
What is 891
200
What does the 2 in 244 represent?
What is 2 hundreds
200
Write 500+60+2 in standard form
What is 562
200
Give the expanded form for 376. Explain your reasoning.
What is 300+70+6. The 3 in 376 represents 3 one hundreds, so I wrote 300. Then, the 7 in 376 represents 7 tens, so I wrote 70. Finally, the 6 in 376 represents 6 ones, so I wrote 6.
300
Round 168 to the nearest hundred
What is 200
300
Which is larger? 132, 231 or 132, 321
What is 132, 321
300
What does the 9 in 8,973 represent?
What is 9 hundreds
300
Write 500+60+0 in standard form
What is 560
300
Explain how place value is helpful to 4th grade students
What is place value can tell you which number to add to another in an addition problem, which number to divide into in long division, and which number to subtract from when you are doing a subtraction problem. It also helps you know which digit to multiply by which digit when you are multiplying. Place value also helps you compare two numbers. You know that if one number is bigger in the hundreds place, for example, it is the larger number, even if its number in the tens place is smaller than the other value.
400
Round 15, 689 to the nearest ten
What is 15, 690
400
Which is larger? 589, 667 or 598, 667
What is 598, 667
400
What does the 5 in 58, 943 represent?
What is 5 ten thousands
400
Write 7,891 in expanded form
What is 7,000+800+90+1
400
One 4th grade student said that the 6 in 987, 460 meant that there were 600 ones. Is she correct?
What is no! The 6 appears right next to the 0. The 0 is in the ones place and it shows that there are 0 ones in this problem. Then, the 6 is in the tens place, which comes next, and it shows that there are 6 tens. 6 tens is the same as 60 ones, so she could say that there are 60 ones, not 600.
500
Round 195, 678 to the nearest ten thousand
What is 200, 000
500
Which is larger? 890, 323 or 890, 322
What is 890, 323
500
What does the 6 in 678, 888 represent?
What is 6 hundred thousands
500
Write 456, 781 in expanded form
What is 400,000+50,000+6,000+700+80+1
500
984, 510 is less than 984, 501. True or false?
What is false. It is greater. To compare, you have to line them up. Then, you look from left to right. They both have 9 in the hundred thousands place, 8 in the ten thousands place, and 4 in the thousands place. Then, they both have 5 in the hundreds place, too. The first has 1 in the tens place and the other has 0 in the tens place. The one that has one group of ten is larger than the number that has 0 groups of ten.