Place Value
What number has 4 hundreds, 3 tens, and 6 ones?
436
145 + 132 = ?
277
What is 100 + 200?
300
Ben had 153 stickers and got 120 more. How many stickers does he have now?
273
Name one strategy you can use to add two three-digit numbers.
Examples: use place value columns, make ten/one hundred, decompose numbers, use number lines
Write 527 in expanded form
500 + 20 + 7
267 + 134 = ?
401
Add 30 to 246. What is the new number?
276
A library has 248 fiction books and 167 non-fiction books. How many books in total?
415
Use place value to explain why 300 + 400 = 700.
300 + 400 = 700 because 3 hundreds + 4 hundreds = 7 hundreds.
Which digit represents the tens place in the number 684?
8
398 + 207 = ?
605
Subtract 100 from 732. What is the result?
632
A class collected 394 cans in one week and 279 cans the next week. How many cans did they collect in both weeks?
673
Show how you can break 456 + 238 into tens and hundreds (decompose) and then add.
456 + 238 = (400+200) + (50+30) + (6+8) = 600 + 80 + 14 = 694 → regroup 14 as 1 ten + 4 ones → 600 + 90 + 4 = 694.
Compare 732 and 723. Use >, <, or = and explain which place value makes them different
732 > 723 because 732 has 7 hundreds, 3 tens; both have 7 hundreds but 732 has 3 tens vs 2 tens in 723 (difference in tens place)
476 + 358 = ?
834
Quickly add 100 to 459 and then add 10. What number do you get?
569
Maria baked 275 cookies and gave 156 to her friends. How many cookies remain?
119
Explain why adding hundreds, tens, and ones separately works when adding three-digit numbers.
Because each digit represents a distinct place (hundreds, tens, ones), adding like places keeps values aligned; regroup when sums exceed place value limits.
Create a three-digit number that has 5 hundreds, zero tens, and 9 ones. Then name its hundreds, tens, and ones.
509. Hundreds: 5, Tens: 0, Ones: 9
Lily has 589 points and Sam has 387 points. How many points do they have together? Show regrouping steps.
976
Without paper, what is 687 + 100 + 30? Explain your mental steps.
817
A school raised 482 dollars on Monday and 319 dollars on Tuesday. They used 200 dollars to buy supplies. How much money do they have left?
601
Two students solved 389 + 267 two ways: one used regrouping, the other used decomposition (300+200, 80+60, 9+7). Both got the same answer. Explain why both methods produce the same result.
Both methods combine the same amounts in different orders; place-value decomposition aligns hundreds, tens, and ones, preserving total sum.