Examen
NAME_______________________________________________________ DATE_______________
I. Solve the next problems
1. 30 – (-8) + 15
2. 16(2)(-4)3. 121 ÷ 11
4. 16(9÷x)2 when x=3
5. y/8 when y=48
II. Make a bar graph of the following information. The results from a survey made to the students of Junior High showedthat from 60 students 35 failed math, 14 failed English, 5 failed Biology and 6 failed music.
III. If bought a bunch of songs in the apple store and you spent $75 dlls. If eachsong is $2.5 dlls, how much songs did you bought?
IV. Make the following conversions.
1. 140 g to kg
2. 35.2 m to mm
3. 89 cm to m
4. 345 mg to g
V.Use the factor three to find the GCF and the LCM of the following numbers:
1. 50, 15
2. 28, 64
3. 12, 15
VI. Find the sum, difference, product or quotient ofthe following fractions.
1. 2/9 – 5/3
2. 7 1/6 + 8 3/2
3. 5 1/3 - 4 ¾
4. 5/2 ● 3/8
5. 7/12 ÷ 6/9
VII. Simplify the followingexpressions.
1. 3x + 9 – 5x + 3
2. 2(x – 3) + 9
3. 4x – 5(2 + x)
4. 3a + 9 – 2a + 6
VIII. Order the numbers from least to greatest.
4 3/8 , -5.3, -4.25 , 5 ¾,-5.33, 0 4.45
IX. Plot the next coordinates and find the slope of the line.
(5, -2), (-4 ,3).
X. Evaluate the expression.
1. 15 + (3 ● 2)2
2. 14+ 9 ÷ 3
XI. Write the fractions in the simplest form.
1. 36/64
2. 14/39
3. 95/125
XII. Solve the next equations or inequalities.
1. 2x - 9 = 112. 3(x + 4)= 36
3. – ½ x = 8
4. -3x≥39
5. 3x + 10 ≤ 22
XIII. Solve the next proportions.
5 =...
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