Chapter 1 Algebra: Understand Numerical And Algebraic Expressions
Guided Practice 3
Page 27 Exercise 1 Answer
2(3 + 4)
Yes, the expression can be described as a product of two factors.
The expression has two factors.
One factor is 2 and the other is the sum 3 + 4.
Result
One factor is 2 and other factor is the sum 3 + 4
Page 27 Exercise 2 Answer
2(3 + 4)
The part of the expression (3 + 4) is the sum of two terms.
Result
(3 + 4)
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Page 27 Exercise 3 Answer
\(\frac{w}{4}\) + 12.5 – 7z
The expression \(\frac{w}{4}\) + 12.5 − 7z has three terms.
The terms are \(\frac{w}{4}\), 12.5, and 7z
Result
The expression has three terms.
Page 27 Exercise 4 Answer
\(\frac{w}{4}\) + 12.5 − 7z
The third term 7z is the product of two factors.
One factor is 7 and other factor is z.
Result
7z is the product of two factors.
Page 27 Exercise 5 Answer
5 − g
The expression 5 − g has two terms.
One term is 5 and other term is g.
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
The expression 5 − g has two terms.
Page 27 Exercise 6 Answer
\(3+\frac{1}{2} b\)The expression \(3+\frac{1}{2} b\) has two terms.
One term is 3 and other term is \(\frac{1}{2} b\)
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
The expression \(3+\frac{1}{2} b\) has two terms.
Page 27 Exercise 7 Answer
\(\frac{v}{3}\) + 2 . 5
The expression \(\frac{v}{3}\) + 2 ⋅5 has two terms.
One term is \(\frac{v}{3}\) and other term is 2 ⋅ 5.
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
The expression \(\frac{v}{3}\) + 2 ⋅ 5 has two terms.
Page 27 Exercise 8 Answer
16.2 − (3 ⋅ 4) + (14 ÷ 2)
The expression 16.2 − (3 ⋅ 4) + (14 ÷ 2) has three terms.
One term is 16.2, second term is 3 ⋅ 4 and third term is 14 ÷ 2.
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
The expression 16.2 − (3 ⋅ 4) + (14 ÷ 2) has three terms.
Page 27 Exercise 9 Answer
5.3t − (20 ÷ 4) + 11
The expression 5.3t − (20 ÷ 4) + 11 has three terms.
The terms are 5.3t, 20 ÷ 4 and 11.
The second term 20 ÷ 4 represent the quotient of 20 divided by 4
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
20 ÷ 4 represent the quotient of 20 divided by 4
Page 27 Exercise 10 Answer
5.3t − (20 ÷ 4) + 11
The expression 5.3t − (20 ÷ 4) + 11 has three terms.
The terms are 5.3t, 20 ÷ 4 and 11.
The first term 5.3t represent the product of two factors.
One factor is 5.3 and other factor is t
NOTE : Each part of expression that is separated by a plus or a minus sign is called a term.
Result
5.3t represent the product of two factors.
Page 27 Exercise 11 Answer
7(10 + 8) − 9
The expression 7(10 + 8) − 9 has two terms.
The part 10 + 8 represent a sum.
Result
(10 + 8) represent a sum
Page 27 Exercise 12 Answer
7(10 + 8) − 9
The expression 7(10 + 8) represents a product.
One factor is 7 and other factor is the sum 10 + 8
Result
7(10 + 8) represents a product as a factor.
One factor is 7 and other factor is 10 + 8