Math Unit Test
Emanuel used the calculations below to find the product of the given fractions. (3/5)(4/9)(-1/2) Step 1 (3)(4)(-1) (5)(9)(-2) Step 2 -12 -90 Step 3 12 90 Step 4 2 15 In which step did his first error occur?
step 1
Noa buys 6 items that each cost $4.25 and 3 items that each cost $6.75. How much does Noa spend in total?
$45.75
Which product is positive?
(-2/5)(-8/9)(1/3)(2/7)
Which product is negative?
(-3/8)(-5/7)(-1/4)
Which shows two products that both result in negative values?
(2.4)(-1.8) and (0.6)(-0.4)
Which correctly applies the distributive property to show an equivalent expression to (8.6)(-2.5)?
(8.6)(-2) + (8.6)(-0.5)
Compatible numbers for 2.4 and -0.18 are 2.5 and -0.2. What is the estimation of the product of (2.4)(-0.18) using these compatible numbers?
-0.5
What is the quotient? 457.6 divided by -286
-1.6
What is the difference of the fractions? Use the number line to help find the answer. 1 - 3 5 4
-11 20
What is the quotient of -27.375 divided by 7.5?
-3.65
What is the simplified value of the expression below? 1/3 divided by 2/3
1/2
What is the best estimate of the sum of the fractions? 31 + 17 + 8 4 3 18
14 1 2
Miguel wants to bike a total of 100 miles over the course of one week in the summer. He logs how much he bikes each day in the table below. Miguel's Biking Log Day Miles Completed Monday 16.3 Tuesday 14 1/2 Wednesday 18.75 Thursday 12 1/4 Friday 22 3/5
15 3/5
Ryder used front-end estimation to estimate the product of (-24.98)(-1.29). What was his estimate?
20
What is the simplified value of the expression below? -8*(-3)
24
A recipe that makes 4 servings calls for 2/3 cup of flour. How much flour is required to make 20 servings?
3 1/3 cups
The weights of five grapefruits are 7.47 ounces, 7.23 ounces, 6.46 ounces, 7.48 ounces, and 6.81 ounces. Using the clustering estimation technique, what is the approximate total weight of the grapefruits?
35 ounces
Nika baked three loaves of zucchini bread. Each cake needed 17/4 cups of flour. Which expression shows the best estimate of the number of cups of flour that Nika used?
4+4+4 = 12
Which number is rational?
5.333333...
Which expression is equivalent to 63.56 + (-81.47)?
63.56 - 81.47
Use the number line to answer the question. Which statement about graphing rational numbers is true?
All of the points on the graph could represent rational numbers.
Shalina wants to write 2/6 as a decimal. Which method could she use?
Divide 2 by 6
What is the first step when applying properties of operations to divide 73.85 by 4.1?
Multiply the divisor and dividend by 10.
Which rule about the sign of the quotient of positive and negative decimals is correct?
negative divided by negative = positive
