Base Ten Riddles
I have 2 tens and 5 ones. What number am I?
25
What is the place value of the italicized number?
435
(Hint: think, H T O)
Hundreds
On an open number line, solve the number sentence below:
20+10=____
30
I have 13 units. My friend gave me 2 more ONES. How many units do I have now?
15 units.
On your white board, draw:
15 units.
1 ten, 5 ones
I have 5 tens and 2 ones.
52
What is the place value of the italicized number?
435
(Hint: think, H T O)
Ones
On an open number line, solve the number sentence below:
20+15=____
35.
I have 23 units. My friend gave me 2 more TENS. How many units do I have now?
43 units.
On your white board, draw:
25 units.
2 tens, 5 ones
I have 13 tens.
130
What is the place value of the italicized number?
435
(Hint: think, H T O)
Tens
On an open number line, solve the number sentence below:
30+25=____
55.
I have 102 units. My friend gave me 2 more TENS. How many units do I have now?
122 units.
On your white board, draw:
123 units.
1 hundred, 2 tens, 3 ones
I have 2 hundreds and 4 tens.
240
What digit is in the hundreds place?
638
6
On an open number line, solve the number sentence below:
22+18=____
40.
After my friend gave me 10 more units, I had 55 units. How many units did I have before?
45 units.
On your white board, draw:
205 units.
2 hundreds, 5 ones
I have 1 hundred and 15 ones.
115.
What digit is in the ones place?
638
8
On an open number line, solve the number sentence below:
56+44=____
100.
After my friend gave me 100 more units, I had 105 units. How many units did I have before?
5 units.
On your white board, draw:
110 units.
1 hundred, 1 ten