Place Value
What is the value of the digit 4 in 47,325?
Ten Thousands
Estimate 55 + 63 by rounding each number to the nearest ten.
120 (60 + 60)
Calculate mentally: 35 x 4
140
What is 4²?
16
Write 5,467 in words.
Five thousand, four hundred sixty seven.
In the number 583,214, which digit is in the hundred-thousands place?
5
Estimate 394 + 142 by rounding each number to the nearest ten.
530 (390 + 140)
Calculate mentally: 104 + 98
Write 5 × 5 × 5 × 5 x 5 x 5 using an exponent
56
Write 5,459 in expanded form.
5000 + 400 + 50 + 9
What number is represented by 5,000,000 + 60,000 + 8000 + 4?
5,068,004
Estimate 253 ÷ 13 using compatible numbers.
25 (250 ÷ 10)
*There can be other correct answers
Calculate mentally: 4,500 ÷ 9
500
(What was your strategy? Explain to Mr. Baux)
What is √900?
30
How would I write the number 144 in exponential form?
122
In which place value is the underlined number?
314.5821
Hundredths
Estimate 4,892 ÷ 51 using compatible numbers.
100 (5000 ÷ 50)
Calculate mentally: 250 × 20
5000
(What was your strategy?)
Evaluate: 52 + √49
32 (25 + 7)
What is 5.35 x 106 in standard form?
5,350,000
The digit 7 in a number has a value of 700,000. The digit 2 has a value of 20. What is the smallest possible number containing these digits?
700,020
A school has 389 students. Each student spends about $28 per week on Pizza Pizza. Estimate the weekly cost (without a calculator).
$12,000 (400 x $30)
*There can be other correct answers for estimating this amount
Calculate mentally: 125 × 48
6000
(Remember this question from the last Jeopardy! game?)
What is the value of 6² × √121 − 10?
15 (36 - 11 - 10)
A number is represented as (4 × 1,000) + (7 × 100) + (3 × 10) + (8 × 1). What is that number?
4738