Place Value
What is the value of the 7 in the following number:
456,789
700 or 7H
10 x 10 =
100
What is 82 rounded to the nearest 10 ?
80
What is the repeated multiplication : 33
3 x 3 x 3
Is 15 a prime or a composite number and what are the factors of 15?
15 is a composite number because it had 1, 3, 5 and 15 as factors.
How many tens are in the following number:
142
14 tens
12 x 3 =
36
What is 545 rounded to the nearest ten and rounded to the nearest hundred?
Ten: 550
Hundred: 500
42=
4 x 4 = 16
What are the factors of 8 ?
1, 2, 4 and 8
83,123 - 15 tens =
83,123 - 150 = 82,973
14 x 8
112
What is 3,891 rounded to the nearest ten, hundred and thousand?
Ten: 3890
Hundred: 3900
Thousand: 4000
53 =
125
Decompose each number into prime factors. Use exponential notation to represent the result: 20
Possible multiplications:
10 x 2 = 20
4 x 5 = 20
Exponential notation: 22 x 51
6 HTh + 11 TTh + 12 Th + 13 H + 4 T + 2 U
600,000 + 110,000 + 12,000 + 1,300 + 40 + 2U =
723,342
12 x 16 =
192
What is 45,736 rounded to the nearest ten, hundred, thousand and ten thousand?
Ten:45,740
Hundred:45,700
Thousand: 46,000
Ten Thousand:50,000
102 =
103 =104 =
105 =
102 = 100
103 = 1,000
104 = 10,000
105 =100,000
Decompose each number into prime factors. Use exponential notation to represent the result:18
2 x 9 = 18
3 x 6 = 18
Exponential notation: 21 x 32 = 18
(1 × 101) + (2 × 102) + (3 × 103) + (14 x 100) =
(1 × 101) = 10
(2 × 102) = 200
(3 × 103) = 3000
(14 x 100) = 14
10 + 200 + 3,000 + 14 = 3,224
32 x 14
448
What is 109,488 rounded to the nearest ten, hundred, thousand, ten thousand, and hundred thousand?
Ten: 109,490
Hundred: 109,500
Thousand: 109,000
Ten Thousand:110,000
Hundred Thousand:100,000
Which is greater:
43 or 34
4 x 4 x 4 = 64
3 x 3 x 3 x 3 = 81, 34 is greater.
Decompose each number into prime factors. Use exponential notation to represent the result: 75
Possible multiplications:
1 x 75, 25 x 3, 5 x 15.
3 x 52 =75.