How many square units in each shape? 2. Measure and label the length and the width of the sides. 3. Use your ruler and measure the sides of the shapes. Give your answer in mm.

There are 1 full square in the first row, 2 in the second, 3 in the third, and 4 in the fourth.
Total full squares = $1 + 2 + 3 + 4 = 10$.

There are 4 half squares (two on the left side, two on the right side).
4 half squares combine to make $4 \times \frac{1}{2} = 2$ full squares.

Total square units = $10 + 2 = 12$.
The shape has $\boxed{\text{12 square units}}$.

There is 1 full square in the first row, 2 in the second, 2 in the third, and 1 in the fourth.
Total full squares = $1 + 2 + 2 + 1 = 6$.

There are 4 half squares (two on the left side, two on the right side).
4 half squares combine to make $4 \times \frac{1}{2} = 2$ full squares.

Total square units = $6 + 2 = 8$.
The shape has $\boxed{\text{8 square units}}$.

The rectangle is 2 units wide and 4 units high.
Total square units = $2 \times 4 = 8$.
The shape has $\boxed{\text{8 square units}}$.

There are 2 full squares in the first row, 4 in the second, 4 in the third, and 2 in the fourth.
Total full squares = $2 + 4 + 4 + 2 = 12$.

There are 4 half squares (one at each corner point).
4 half squares combine to make $4 \times \frac{1}{2} = 2$ full squares.

Total square units = $12 + 2 = 14$.
The shape has $\boxed{\text{14 square units}}$.

There are 2 full squares in the second row and 4 in the third row.
Total full squares = $2 + 4 + 2 = 8$.

There are 4 half squares (one at the top point, one at the bottom point, and two on the sides).
4 half squares combine to make $4 \times \frac{1}{2} = 2$ full squares.

Total square units = $8 + 2 = 10$.
The shape has $\boxed{\text{10 square units}}$.

There is 1 full square in the second row, 2 in the third, and 3 in the fourth.
Total full squares = $1 + 2 + 3 = 6$.

There are 4 half squares (two on the left side, two on the right side).
4 half squares combine to make $4 \times \frac{1}{2} = 2$ full squares.

Total square units = $6 + 2 = 8$.
The shape has $\boxed{\text{8 square units}}$.