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REVIEW EXERCISES.

Find the value of the following:

81 • 9 28 • 4 30 : 3 35 · 5
45 ; 5 18 : 9 16 ; 2 16 ; 4
36 : 6 25 : 5 45 : 5 27
72 = 8 15 - 3 24 : 8 24 : 3
40 : 5 18 : 2 36 = 9 18 : 2
27 ; 3 36 : 4 32 : 4 64 ; 8

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Find the value of the following:

( 25 – 5) = 4 (37 -- 2) =-5
( 36 + 6) - 7 ( 49 – 7) = 7
( 41 + 7) = 6 (33 + 3) = 4
(51 + 3) = 9 ( 80 - 8) = 9
( 67 + 5) = 8 ( 60 - 6 ) = 6
(18 + 3) = 3 ( 33 + 7) = 8
( 28 + 4) = 4 (18 + 3) = 3
( 29 + 7) = 6 (22+5) = 9
( 13 + 3) = 2 ( 43 + 6) = 7
( 60 – 4) -8 (21 + 3) = 6
( 47 — 2) : 5 (31 + 5) = 4
(33 + 3) = 4 (32+ 3) = 5

21 = (5 + 2) 36 - (7 + 2) 48 = (2+4) 32 · (3 + 5 ) 35 = ( 9 — 2) 28 = ( 8 — 4) 27 : (6-3) 63 : (7 + 2) 45 = (2+3) 56 =(3+4) 49 = (2+5) 72 +(6+3)

REVIEW EXERCISES.

Copy and find the value of the following:

(48+8)=-2 (6+15)-(6-3) 4+(16:4)—6
(81:-9):-3 (8+24) (9—1) 7+(35:-5)-4
(56:-7)=-4 (7+18)=(7—2) 8-(369)+2
(70:-7)=-5 (8+28):-(5+-4) 9+(81:-9-6
(36:6:3 (9+36) :-(3+2) 7+(32:-4)-3
(20:-5)=2 (8+40) =(7—1) 3+(49+7)-5
(48-6)=4 (6+30)=(8—4) 6+(64-8)-4
(54:6):3 (3+27)=(7+3) 5—(45+5)+4
(36:9)-2 (8+24) =(3+5) 9-(42:6)-2
(70:7):-2 (7+43)=(2+3) 8+(16--4)-6
(54:-9):3 (9+40)=(5+3) 9+(21-7)-6
(64:8):4 (6+54) =(5+1) 3+(64:8)-7
(567)-2 (8+72)=(7+3) 3+(63--9)-9
(72:-8) :3 (9+47)+(2+5) 8+(60:6)-5

Copy and find the value of the following:

45:-5=6+? 27= 3=6+? 45?=6+3 32:4=5+? 54: 6=5+? 36:?=4+2 81:-9=3+- ? 80: 8=7+? 72: ?=6+3 72:-9=6+? 63: 9=3+? 70:-?=6+4 60:-6=8+? 21: 3=4+? 42:?=3+4 49:-7=4+- ? 14:2=6+? 40:-1=1+3 36:4=3+? 64: 8=5+? 54:?=4+2 27:-3=4+? 35: 5=5+? 48:-?=5+3 16:26+? 42: 7=3+? 35:-?-=6+1 24-6=3+? 48: 6=2+? 70:?=8+2

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1. Into how many parts has one of the apples in the picture been divided ?

2. How do these two parts compare in size?

3. What is one of these two equal parts called ? One-half.

4. How many halves of the apple make the whole apple ?

5. Into what number of parts is one of the pears divided ?

6. How do these three parts compare in size ?

7. What is one of these three equal parts called ? . One-third.

8. What are two of these three equal parts called ?

9. How many thirds are there in the whole pear?

10. Into how many parts has one of the oranges in the picture been divided ?

11. How do these four parts compare in size ?

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12. What is one of these four equal parts called ? One-fourth.

13. What are two of the parts called? What are three of the parts called ?

14. How many fourths are there in the whole orange?

One or more of the equal parts of any thing is called a Fraction.

Two numbers written one above the other, with a line between them, are used to express a fraction.

The number below the line shows the number of equal parts into which the thing is divided.

It is called the Denominator.

The number above the line shows how many parts form the fraction.

It is called the Numerator.
One-half is therefore expressed thus: 1.
One-third is therefore expressed thus: j.
One-fourth is therefore expressed thus: 1
Two-fourths is therefore expressed thus: 4.
Three-fourths is therefore expressed thus:

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1. Draw a line and divide it into 5 equal parts. 2. What is one of these parts called? One-fifth.

3. What are two of the parts called? What are four of the parts called ?

4. How many fifths make the whole line?
5. Draw a line and divide it into 6 equal parts.
6. What is one of these parts called ? One-sixth.

7. What are three of the parts called? What are five of the parts called ?

8. How many sixths make the whole line?

9. If a pie is divided into seven equal pieces, what part of the pie is one piece ? Three pieces ? Four pieces? How many sevenths make the whole pie ?

10. If a pound of candy is equally divided among eight boys, what part of the pound will one boy receive ?

11. How many eighths of it will four boys receive ? Three boys ? Six boys ?

12. A miller divided a barrel of flour equally among nine poor families. What part of the barrel of flour did he give to each family ?

13. How many parts did he give to five families ? To eight families ?

14. If a dollar is divided into ten equal parts, what is one of the parts called? What are four of the parts called? What are ten of the parts called ?

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