8/3/2019 Unit 3 Rational Numbers Review
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Unit 3 Rational Numbers Review Name:_________________
1. Which of the following numbers are equal to4
5 ?
4 5 4 4 8, , , ,
5 4 5 5 10
____________________________________________
2. Write the rational number represented by each letter as a
decimal.
______________________________________________________________________
3. Write the rational number represented by each letter as a
fraction.
4. Sketch a number line and mark each rational number on it.
Order the numbers from greatest to least.
2.25,5
4, 1.5,
1
8 , 0.9
5. In each pair, which rational number is greater? Explain how
you know.
a) 7.3, 7.2 b)4 5
,5 4
c) 1.2, 1.3 d)10 10
,13 11
6. Determine each sum.
a)3 1
4 2 + b)
3 1
4 2+
c)3 1
4 2
+
d)3 1
4 2
+
7. Determine each sum.
a)2 1
2 45 2
+
b)3 1
6 18 5
+
8. Use integers to estimate each sum. Then, determine each
sum.
a) 3.6 + 21.9( ) b) 0.81+ 2.4
9. Write the subtraction statement that each number line
represents.
a)
10. Determine each difference. Describe the strategies you
used.
a) 3 14 2
b) 3 13 55 2
8/3/2019 Unit 3 Rational Numbers Review
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Unit 3 Rational Numbers Review Name:_________________
11. Predict whether each difference is positive or negative.
Determine each difference.
a) 32
7 4
3
5b)
1 23 2
4 3
12. Use integers to estimate each difference. Then, determine
each difference.
a) 4.7 5.9 b) 0.94 1.35
13. Predict the sign of each product. Determine each
product.
a) ( 1.2) 0.3 b) 0.34 ( 0.5) c) ( 0.6) ( 0.15)
14. Predict the sign of each product. Determine each
product.
a)2 1
5 2
b)3 1
2 7
c)3 4
4 5
d)3 5
4 25 12
15. Determine each quotient.
a) i) 16 2 ii) ( 1.6) 0.2
b) i) 60 3 ii) ( 0.6) ( 3)
16. Predict the sign of each quotient, and then calculate each
quotient.
a)1 2
5 5
b)2 5
3 6
c)3 5
4 2
d)5 2
9 3
17. Determine each quotient.
a)1 1
3 22 6
b)1 3
2 45 4
18. Evaluate.
a) 4.5 5.1 1.7+ b) 5.8 3.1 0.5
19. Evaluate.
a)2 1 5
3 2 6
+
b)3 9 5 1
8 4 4 10
+
c)2 1 1 2
4 4 33 3 6 5
+ +
