Download Assessment 2 Review Multiplying and Dividing

Assessment 2 Review Multiplying and Dividing
Name________________________
7NSA2A: I can multiply integers and use multiplication of integers to describe real world context.
1) -3 · -12 =______
2) 7 · -6 = ______
3) 8 · -11 = ______
4) Josh spent $8 on lunch four different times this week. Write and solve an equation to represent
this situation using integers. _______________________________________________________
5) Your bank is running a promotion and will forgive two debts of $15 each. Write
and solve an equation to represent the change in money using integers.
_____________________________________________________________________________________
7NSA2B I can divide integers, represent division as multiplication, and use division to describe real world
context.
1) 40 ÷ -5 = _____
2) -72 ÷ -8 = _____
3) 80 ÷ -4 = _____
4) Jeffrey’s electricity bill for the year is $1044. If he pays the same amount every month, what is
the monthly change in his bank account? Write and solve an equation to represent this situation
using integers. ___________________________________________________________________
5) It took an airplane 40 seconds to drop 800 feet from its current elevation. If the
airplane dropped at a constant rate, what is the change in elevation per second? Write and
solve an equation to represent this situation using integers.
_____________________________________________________________________________________
7NSA2A I can extend the rules for multiplication of integers to all rational numbers to describe real
world context.
1)
·
= ____
2)
· -3 = ________
4) Which of the following is equivalent to
3) (3.82)(-2.41) = ________
?
Explain your reasoning.
_____________________________________________________________________________________
_____________________________________________________________________________________
5) Jim owes Mark $15.28. Mark says that he will forgive
of the debt. Write and solve an equation
to determine how much money Mark forgave, and determine how much Jim still owes.
Mark forgave:______________
Jim still owes:_______________
7NSA2B I can extend the rules for dividing integers to all rational numbers to describe real world
context.
1)
= _____
2)
÷
= ________
3) (-23.04) ÷ (6) = __________
4) A rental house for the week costs $7,409.10 and six friends are planning to pay for the rent
equally. Write and solve an equation that represents the change in money to each friend’s bank
account.
7.NS.A.2.C I can apply properties of operations as strategies to multiply and divide rational numbers.
Directions: Demonstrate the use of properties while simplifying expressions.
1)
8 · 6 ·
2)
-7 ÷
3)
· 7 ·
· -3 ·
· -10 · -12 · -16 ·
·
Direction: Demonstrate the use of the distributive property and simplify.
4) -4(
5) -5(
)
)
Directions: Put the distributed terms back into two term multiplication (undo the distributive
property)
6)
-3 · 5 + -3 ·