leading digit approximation
What is the leading digit in the number 742?
7
In the expression 3+5×23 + 5 \times 23+5×2, what is the first operation to perform?
What is multiplication?
What is 25% of 200?
50
If a car travels 180 miles in 3 hours, what is its average speed in miles per hour?
60mph
If a worker earns $20 an hour, how much do they earn for 5 overtime hours?
$100
Estimate the product of 23 and 59 using leading digit approximation.
1,300
Solve the expression (4+6)÷2(4 + 6) \div 2(4+6)÷2
5
If you score 80% on a test of 50 questions, how many questions did you answer correctly?
40
A factory produces 500 toys in 5 hours. What is the rate of production in toys per hour?
100 toys/hour
A worker's hourly wage is $30, and they work 10 hours of overtime. What is their total pay for the overtime at 1.5x the regular rate?
$450
Round the number 8,765 to its leading digit for approximation.
9
What is the result of 2×(3+5)−42 \times (3 + 5) - 42×(3+5)−4?
12
What percentage is 45 out of 90?
50%
If John earns $15 per hour, how much does he earn in an 8-hour workday?
$120
If an employee makes $25/hour and works 60 hours in a week, what is their total weekly pay including overtime?
$1,250
What is the leading digit of the number 0.0342?
3
Calculate 8+3×(4−2)÷28 + 3 \times (4 - 2) \div 28+3×(4−2)÷2
10
If a shirt costs $40 and is on sale for 20% off, what is the sale price?
$32
If a runner maintains a speed of 8 miles per hour, how far can they run in 2.5 hours?
20 miles
Calculate the earnings for a person who works 45 hours in a week at a rate of $18/hour, with overtime at 1.5x.
$882
Estimate the square root of 2,256 using leading digit approximation.
50
What is the outcome of the expression 6÷2(1+2)6 \div 2 (1 + 2)6÷2(1+2)?
9
If your salary increases from $60,000 to $75,000, what is the percentage increase?
25%
A train travels 240 miles at an average speed of 60 miles per hour. How long did the journey take?
4 hours
An employee works 14-hour shifts on weekends, earning $30/hour, and receives time-and-a-half for every hour over 40 in a week. If the week totals 54 hours, what is their total wage for that week?
$1,470