Place Value Riddles
I am a 3 digit number.
1. My 3 is worth 300.
2. My 2 is worth 1/10 as much.
3. My last digit is worth 5.
325
How many ounces are in 1 pound?
16 ounces are equal to 1 pound
What is 102?
100
18/3
6
7 X 2=
7 X 4=
7x 6=
*Don't forget the turnaround facts!*
7 X 2=14
7 X 4=28
7x 6=42
I am a 4 digit number.
1. My 3 is worth 3 * 1000
2. My 5 is worth 500
3. One of my 2's is worth 2. The other 2 is worth 10 time as much.
3,522
How many ounces are in 3 pounds?
16 x 3= 48
3 pounds is equal to 48 ounces.
How do you write 1,000 as:
1. Products of 10
2. In exponential notation
1. Products of 10= 10 x 10 x 10
2. Exponential Notation= 103
63/7
9
846 X 3=
2,538
I am a 5 digit number.
1. My 7 is worth 7 * 10,000
2. My 6 is worth 6,000.
3. One of my 2's is worth 20. The other 2 is worth 10 times as much.
4. My other digit is 4.
76, 224
How many ounces are in 5 pounds?
5 x 16=80
5 pounds is equal to 80 ounces.
How do you write 106 in:
1. Standard Notation
2. As products of 10
Standard Notation: 1,000,000
Products of 10= 10 x 10 x 10 x 10 x 10 x 10
568/6
94 R4
56 X 34=
1,904
I am a 6 digit number.
1. One of my 8's is worth 800,000. The other 8 is worth 1/10 as much.
2. My 7 is worth 7 (100s).
3. My 3 is worth 30.
4. My other digits are 0.
880, 730
Estimate:
Max collects Pokemon cards. When he has 1,400 cards, his parents will buy him 1,400 more Pokemon cards as a reward. Max has 108 packs of Pokemon cards. Each pack has 36 cards.
Does Max currently have enough Pokemon cards to get the reward from his parents?
108 rounded to the nearest hundred= 100 packs of Pokemon cards
36 rounded to the nearest ten=40 Pokemon cards in each pack.
40 x 100=4,000 Pokemon cards
Yes, Max currently has enough Pokemon cards to get the reward of 1,400 Pokemon cards from his parents.
Daniella and Sotaro are playing High Number Toss. They created the numbers shown below. Write each player's number in standard notation.
Who won the game?
Daniella: 556 * 103
Sotaro: 267 * 105
Daniella Standard Notation=556,000
Sotaro Standard Notation=26,700,000
Sotaro won the game14000/70=
200
276 X 54=
14,904
I am a 6 digit number.
1. One of my 9's is worth 900,000. The other 9 is worth 1/10 as much.
2. My 5 is worth 5 (100s)
3. My 8 is worth 80.
4. My other digits are 1.
991,581
Estimate:
Mr. Tharp collects spiders. When he has 2,600 spiders he will get a new spider cage. Mr. Tharp currently has 7 cages, with 189 spiders in each cage.
Does Mr. Tharp have enough spiders to get a new cage?
7 rounded to the nearest 10= 10 cages
189 rounded to the nearest 100= 200 spiders
10 x 200= 2000
No, Mr. Tharp does not have enough spiders to get a new cage (he needs to have 2,600 spiders to get a new cage).Write the number 9,835,072 in expanded form.
9,000,000 + 800,000 + 30,000+ 5,000 + 0 + 70 + 2
7893/25
315 R 18
954 x 107
9,540,000,000