4th grade Comprehensive Review Part 3

Front

What is the shaded area if the options are 0.86, 0.80, 0.90, 0.84?

Back

The shaded area is 0.86.

Front

If a basketball team plays 81 games each year, how many games will they play in 29 years?

Back

The team will play 2,349 games in 29 years.

Front

A factory makes 400 refrigerators every day. If it makes 150 more stoves per day than refrigerators, which equation can be used to find x, the total number of refrigerators and stoves made in one day?

Back

x = 400 + 400 + 150.

Front

What type of triangle has one pair of perpendicular sides and two acute angles?

Back

It is a right triangle.

Front

Isaiah planted 521 trees in the first year, 387 in the second year, and 438 in the third year. How many more trees does he need to plant to reach a total of 2,000 trees?

Back

Isaiah needs to plant 654 more trees.

Front

What is the formula to find the area of a rectangle?

Back

Area = length × width.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees, while obtuse angles are greater than 90 degrees but less than 180 degrees.

Front

What is the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).