Multiplication of 3 or 4 Numbers

Q.

Study the pattern and answer the following:

$$\begin{gathered} 15\times 15=\mathbf{2}25 \\ 25\times 25=\mathbf{6}25 \\ 35\times 35=\mathbf{12}25 \\ 45\times 45=\mathbf{20}25 \end{gathered}$$

$$\begin{gathered} 55\times 55=....25 \\ 65\times 65=....25 \\ 75\times 75=....25 \\ 85\times 85=....25 \\ 95\times 95=....25 \\ 105\times 105=....25 \end{gathered}$$

Q.

Convert $75\mathrm{kL}5\mathrm{L}$ into $\mathrm{litres}$.

Q. The number of biscuit packets consumed by each child is given below:
Find the cost of biscuits that are consumed.

1. $8
2. $48
3. $12
4. $24

Q.

Find the values of the following.

$4,279\times 92+8\times 4,279$

Q.

$15\times 46=\_\_\_\_\times 15$

Q. $5\times 4\times 10=$ _____

1. 20
2. 40
3. 50
4. 200

Q. $\text{The value of}2\times 4\times 5\times 7\text{is}$ _____.

1. 140
2. 70
3. 40
4. 280

Q.

Fill in the blanks to make the statements true.

$8\times (1000+\_\_)=8032$

Q.

$\left(51+17\right)+19=\_\_\_\_+\left(17+19\right)$

Q. Find the amount required for pencils to complete all the notebooks.

1. $90
2. $45
3. $30
4. $75