Question

celia is playing a card game. she needs to match each expression with an equivalent value. write each answer in the correct blank space.
(4·30 - 90) ÷ 3
-10
(20 ÷ 4)+(3)(-5)
-5
50 - 3(10)+25
10
which expressions are equivalent to -24? circle three correct answers.
72 ÷ (-2)+7 - (-5)
64 - (25 + 2·5 + 5)
(50 + 2)-50·2 ÷ 2
22 - (-10) ÷ 10·2
(28 - 4) ÷ 4·(-4)
angelica has a $100 bill. she buys 3 pairs of pants for $12 each, 5 tank tops for $4 each, and a dress for $8. the expression shown represents the amount of change she will receive.
100 - 3(12)+5(4)+8
choose the correct answer from each drop - down menu to complete the statement.
angelica spent on clothes and received in change.
$64
$32
$66
$34
$68
$36
three friends sold bracelets at a flea market. they sold 150 bracelets for $5 each. they spent $60 to rent the booth and $2 on supplies to make each bracelet.
the amount of money each friend received after splitting the profits evenly can be represented by the expression below.
5·150 - (60 + 2·150) ÷ 3
what amount of money did each friend receive? write your answer in the box.
$

Explanation:

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Step1: Calculate \((4\cdot30 - 90)\div3\)

First, calculate \(4\cdot30=120\), then \(120 - 90 = 30\), and \(30\div3=10\).

Step2: Calculate \((20\div4)+(3)(-5)\)

Calculate \(20\div4 = 5\), \(3\times(-5)=-15\), then \(5+( - 15)=-10\).

Step3: Calculate \(50-[3(10)+25]\)

First, \(3\times10 = 30\), then \(30 + 25=55\), and \(50-55=-5\).

Step1: Calculate \(72\div(-2)+7-(-5)\)

\(72\div(-2)=-36\), then \(-36 + 7=-29\), \(-29-(-5)=-24\).

Step2: Calculate \(64-(25 + 2\cdot5+5)\)

First, \(2\cdot5 = 10\), then \(25+10 + 5=40\), and \(64-40 = 24\).

Step3: Calculate \([(50 + 2)-50\cdot2]\div2\)

\(50+2=52\), \(50\cdot2 = 100\), \(52-100=-48\), \(-48\div2=-24\).

Step4: Calculate \(22-(-10)\div10\cdot2\)

\(-10\div10=-1\), \(-1\times2=-2\), \(22-(-2)=24\).

Step5: Calculate \((28 - 4)\div4\cdot(-4)\)

\(28-4 = 24\), \(24\div4 = 6\), \(6\times(-4)=-24\).

Step1: Calculate the amount spent

\(3(12)+5(4)+8=36 + 20+8=64\).

Step2: Calculate the change

\(100-64 = 36\).

Answer:

\((4\cdot30 - 90)\div3\) matches \(10\); \((20\div4)+(3)(-5)\) matches \(-10\); \(50-[3(10)+25]\) matches \(-5\).

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