4.MD.A.3 Math Practice Questions — Sports Academy Games

Practice playeasy

A rectangle has length $8$ cm and perimeter $40$ cm. What is its width in centimeters?

Perimeter $P = 2\ell + 2w$ , so $40 = 2(8) + 2w$ . Then $40 = 16 + 2w$ , so $2w = 24$ and $w = 12\text{ cm}\textsf{.}$

Practice playeasy

A rectangle has length $10$ m and perimeter $50$ m. What is its width in meters?

Perimeter $P = 2\ell + 2w$ , so $50 = 2(10) + 2w$ . Then $50 = 20 + 2w$ , so $2w = 30$ and $w = 15\text{ m}\textsf{.}$

Practice playeasy

A rectangle has length $9$ in and area $72$ in $^2$ . What is its width in inches?

Area $A = \ell w$ , so $72 = 9w$ . Dividing gives $w = 8\text{ in}\textsf{.}$

Practice playeasy

A square has perimeter $36$ cm. What is the length of one side in centimeters?

A square has $4$ equal sides, so $P = 4s$ . Then $s = \dfrac{36}{4} = 9\text{ cm}\textsf{.}$

Practice playeasy

A square has perimeter $64$ m. What is the length of one side in meters?

A square has $4$ equal sides, so $P = 4s$ . Then $s = \dfrac{64}{4} = 16\text{ m}\textsf{.}$

Practice playeasy

A rectangle has width $5$ m and perimeter $30$ m. What is its length in meters?

Perimeter $P = 2\ell + 2w$ , so $30 = 2\ell + 2(5)$ . Then $30 = 2\ell + 10$ , so $2\ell = 20$ and $\ell = 10\text{ m}\textsf{.}$

Practice playeasy

A rectangle has length $8$ cm and area $56$ cm $^2$ . What is its width in centimeters?

Area $A = \ell w$ , so $56 = 8w$ . Dividing gives $w = 7\text{ cm}\textsf{.}$

Practice playeasy

A square has perimeter $100$ in. What is the length of one side in inches?

A square has $4$ equal sides, so $P = 4s$ . Then $s = \dfrac{100}{4} = 25\text{ in}\textsf{.}$

4.MD.A.3 math practice. Learn by doing.