Remember: The top row counts hundreds. Add hundreds, tens and ones, each on their own.
Questions
1
Which number has six hundreds, three tens and five ones?
six hundred thirty-fivetwo hundred forty-fivefour hundred fifty-seven
2
Which number has three hundreds, two tens and one one?
four hundred sixthree hundred twenty-oneone hundred thirty-six
3
Which one is not a good way to add?
🔘adding ones to ones🌀adding hundreds to ones💯adding hundreds to hundreds
4
Which number has two hundreds, four tens and five ones?
three hundred twenty-onetwo hundred forty-fivesix hundred thirty-five
5
Ten tens make which one?
🔟one ten🪙one hundred🏔️one thousand
6
Which number has four hundreds, no tens and six ones?
four hundred sixsix hundred thirty-fivetwo hundred forty-five
7
Which row of the frame holds the ones?
↔️the middle row⬇️the bottom row🔝the top row
8
Which one is a good way to add?
💯adding hundreds to hundreds🌀adding hundreds to ones
9
↔️Does the middle row hold the hundreds?
YesNo
10
🔝Does the top row hold the hundreds?
YesNo
11
Which one is a good way to add?
🔢adding tens to tens🌀adding hundreds to ones
12
Ten ones make which one?
🪙one hundred🏔️one thousand🔟one ten
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Answer key · Set B
Adding three-digit numbers
1six hundred thirty-five
2three hundred twenty-one
3adding hundreds to ones
4two hundred forty-five
5one hundred
6four hundred six
7the bottom row
8adding hundreds to hundreds
9No
10Yes
11adding tens to tens
12one ten
Mark each answer, count the right ones and write the score on the sheet.