Number Sense Review

7.NS.1.1

On the number line below, the numbers a and b are the same distance from 0. What is a+b ?

7. NS.1.2

Place a check in the box next to all the expressions given below that are equivalent to -7

Jason's checking account balance was $345. Jason withdrew $160 three times. What is his current balance?

7.NS. 1.1

Mount Ojos del Salado is the highest mountain in Chile, with a peak at about 6900 meters above sea level. The Atacama Trench, just off the coast of Chile, is about 8100 meters below sea level (at its lowest point).

What is the difference in elevations between Mount Ojos del Salado and the Atacama Trench?

(a)  

7.NS.1.2

Evaluate the following expression.

$$2+\ \left(3-2\times2\right)\times1$$  

(a)  

The table shows prices for a local bowling alley. Valerie rented shoes, bowled 4 games, and bought 2 orders of nachos plus a large soda. She used a coupon for half off the price of food. What was the total cost, before tax, of Valerie's trip to the bowling alley?

(a)  

7. NS 1.1

The value of 5 is plotted on the number line below. Plot another point on the number line that is 10 units away from 5.

7. NS.1.2

What is the value of the given expression?

$$9\ \cdot\ 3-9\ \cdot\ \frac{20}{-5}$$  

(a)  

7.NS. 1.3

A diver is swimming 30 meters below sea level. Another diver is taking a break on a boat platform that is 5 meters above sea level, directly above him. How far apart are the two divers?

7. NS. 1.1

What is the value of the expression shown below?

$$8\ -\ \left(-5.5\right)\$$