Multiplication Patterns

Q.

Calculate the perimeter of the given figure.

1. 30 m

2. 35.6 m

3. 29.2 m

4. 28.4 m

Q. The pattern formed by all odd numbers is correctly represented by the expression

1. 2n+1
2. 2(n+1)
3. 2n
4. None of above

Q.

Value of $2xy$ when $x=4$ and $y=0$ is _________.

1. 0

2. 8

3. 16

4. 6

Q.

Match the following figures according to the number of matchsticks required to make them.

1. $1-a;2-d;3-c$

2. $1-a;2-b;3-c$

3. $1-c;2-b;3-a$

4. $1-c;2-a;3-d$

Q.

Given below is a pattern made using squares. Observe the pattern and tell the number of squares in the next figure in the sequence. Also find the general form which represents the number of squares in the sequence.

1. $16,n^2$

2. $25,2n+1$
3. $25,n^2$

4. The pattern doesn’t follow with the next set of squares

Q.

If you need five matchsticks to make a model of 2, find the number of matchsticks you need to make '$n$' such models.

1. $2n$

2. $5n$

3. $5+n$

4. Cannot tell without knowing the value of $n$

Q.

Each floor in a building has 5 rooms. How many rooms does the building have assuming the number of floors to be 'n'?

1. $\frac{5}{n}$

2. $5+n$

3. $5-n$

4. $5n$

Q.

Find the rule which gives the number of matchsticks required to make the following matchstick patterns. Use a variable to write the rule.

1. a: 2n;b: 2n

2. a: 2n;b: 3n

3. a: 3n;b: 2n

4. a: 3n;b: 3n

Q. Which of the following can be used as a variable?

1. $5$
2. $a$
3. $\pi$
4. $\frac{13}{5}$

Q.

What is the number of matchsticks you need to make '$n$' number of $2$s if 5 matchsticks are used to make one 2?

1. $2n$
2. $5n$
3. $5+n$
4. $2+5n$