Place Value (Whole)
In the number 4,583,217, what is the value of the digit 8? How can you prove it?
The value of 8 is 80,000.
In the number 4.672, what is the value of the digit 6?
0.6
4.23×1,000=_____
4,230
3 x 7 = _____
3 x 7 =21
Without calculating exactly, which is larger: 29×51 or 30 x 50?
30 x 50 is larger
Which number is greater: 6,402,189 or 6,420,981? How can you prove it?
The greater number is 6,420,981
Write 23.405 in expanded form.
20 + 3 + 0.4 + 0.005
6,450÷100=_____
64.5
9 x ___ = 54
9 x 6 = 54
Multiply 367 by 100. Then subtract 2,500. What is the result?
33,700
Write 3,705,046 in expanded form.
Which number is greater: 5.083 or 5.308?
5.308
Fill in the missing power of 10:
5.6 × 10__ = 560
5.6 × 102= 560
Draw an area model for 54 x 23.
See diagram on board.
Look at this sequence: 5, 15, 45, 135, … What is the 6th number in the sequence?
1,215
Use the digits 2, 5, 7, 9, 0 exactly once to create the largest possible number.
97,520
Use the digits 7, 0, 4, 2 to create the greatest number less than 1.
0.742
A number is multiplied by 10,000. How many places does the decimal shift?
4 places
Solve using partial products 32 x 145
See solution on board.
I am a number less than 50. I am divisible by 3 and 4, but not by 6. What number am I?
12
The digit 6 is in the thousands place in one number and in the hundred-thousands place in another number. How many times greater is the value of the 6 in the hundred-thousands place?
The digit 6 in the hundred-thousands place is 100 times greater than the 6 in the thousands digits place.
Round 18.746 to the nearest hundredth.
18.75
A number is multiplied by 10³ and then divided by 10¹.
What is the overall effect on the value of the number?
The number gets ____ times greater/smaller.
The number gets 100 times greater
Solve using the standard algorithm.
234 x 410
See solution on board.
I am a 4-digit number. My thousands digit is 3. My tens digit is 2. My ones digit is double my hundreds digit. The sum of all my digits is 14. What number am I?
3,128