Place Value
Rounding & Comparing
Addition & Subtraction
Word Problems
Construct An Argument
100

What is the value of the 7 in 472,915?

What is 70,000?

100

Round 532 to the nearest ten.

What is 530?

100

Find the sum: 3,482 + 249.

What is 3,731?

100

Sarah has 325 marbles. John has 189 marbles. Who has more and by how many?

What is Sarah has 136 more marbles?

325>189

100

True or False? 35,804 < 35,840. Explain why.

What is true? 35,804 < 35,840 because in the tens place, 0 < 4.

200

Write 305,482 in expanded form

What is 300,000+5,000+400+80+2?

200

Round 48,672 to the nearest thousand.

What is 49,000?

200

Find the difference: 4,000 – 2,458.

What is 1,542?

200

A town’s population is 58,473. The next year, 2,615 people moved in. What is the new population?

What is 61,088 people?

200

A student said 9,842 rounded to the nearest thousand is 9,800. Do you agree? Why or why not?

What is disagree? 9,842 rounds to 10,000, not 9,800, because the hundreds digit is 8 (5 or more → round up).

300

Which digit is in the ten-thousands place in 659,328?

What is 5?

300

Which place value do you use to compare 305,478 or 305,874?

What is the hundreds place?

300

Solve: 62,385 + 14,732.

What is 77,117?

300

A factory produced 36,728 toy cars in January and 42,583 in February. How many toy cars did it produce in total?

What is 79,311 toy cars?

300

A subtraction problem: 7,003 – 456. A student said you don’t need to regroup. Is the student correct? Defend your answer.

What is incorrect? You must regroup because you cannot subtract 6 from 3 in the ones place.

400

Write 82,047 in word form.

What is Eighty two thousand, forty seven?

400

Round 62,395 to the nearest hundred and to the nearest thousand.

What is 62,400?

400

Solve: 90,000 – 67,248.

What is 22,752?

400

A school had 8,460 pencils. They gave 3,275 pencils to classrooms. How many pencils are left?

What is 5,185 pencils?

400

Mia added 23,458 + 35,672 and got 59,120. Explain why her answer is not reasonable.

What is not reasonable? 23,458 + 35,672 should be close to 59,000 (actually 59,130). A Reasonable answer is when you estimate. She also added incorrectly.

500

A number has 4 in the ten-thousands place, 6 in the thousands place, 9 in the hundreds place, 2 in the tens place, and 1 in the ones place. What is the number?

What is 46,921?

500

Two students rounded 72,843 differently: one said 73,000, the other said 72,800. Who is correct? Defend your answer.

What is, they are both right because it depends what place value you are rounding to? 73,000 is rounded to the nearest thousand and 72,800 is rounded on the nearest hundred

500

A school library had 42,583 books. Over the summer, 8,246 new books were added. Then 12,417 books were borrowed. How many books are in the library now?

What is 38,412 books?

42,583+8,246-12,417

500

A stadium can hold 64,532 people. At a concert, 59,289 seats were filled. How many seats were empty?

What is 5,243 seats?

500

You are comparing two numbers: 49,875 and 49,758. A student says they are equal because they both start with 49,7. Is this correct? Construct an argument.

What is incorrect? Even though both start with 49,7, 49,775 > 49,758 because in the tens place, 7 > 5.