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Test yourself on 3rd grade math with AI-generated multiple-choice questions, answers, and explanations.
Because 15% of 60 is calculated by multiplying 60 by 0.15, which equals 9.
Because a pentagon is defined as a polygon with five sides.
Because the area of a triangle is calculated using the formula \( \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \). Plugging in the values, \( \text{Area} = \frac{1}{2} \times 10 \, \text{cm} \times 5 \, \text{cm} = 25 \, \text{cm}^2 \).
Because there are 16 ounces in a pound, so 2.5 pounds is calculated by multiplying 2.5 by 16.
Because the formula for the sum of the internal angles of a polygon is (n - 2) × 180°, where n is the number of sides. For a hexagon, n is 6, so (6 - 2) × 180° equals 4 × 180°, which is 720°.
Multiplying numbers helps us quickly find the total when combining equal groups, a fundamental concept in early arithmetic education still emphasized today.
Because you follow the order of operations, which states to perform multiplication before addition. So, first calculate 4 × 2 to get 8, then add 3, resulting in 11.
42 is the largest of the three numbers, and it is often recognized as "the answer to the ultimate question of life, the universe, and everything" in Douglas Adams' science fiction series, "The Hitchhiker's Guide to the Galaxy."