Maths Quiz For Primary Class Students

Fred spent a total of $28.49 over the course of a week. To find the average cost per day, we divide the total amount spent by the number of days in a week (7). Therefore, $28.49 divided by 7 equals $4.07.

The equation 3x=6x-15 can be solved by subtracting 3x from both sides, which gives -3x=-15. Dividing both sides by -3, we get x=5. Therefore, the value of x that satisfies the equation is 5.

The given expression is a subtraction problem where we subtract 37 from 7 and then subtract 47 from the result. When we subtract 37 from 7, we get -30. Then, when we subtract 47 from -30, we get -77. Therefore, the correct answer is -77.

There are 1,000 milliliters in 1 liter. This is because the metric system uses a base unit of 1,000 for conversions between different units. In this case, 1 liter is equal to 1,000 milliliters.

The sequence follows a pattern where each term is obtained by adding the square of its position number to the previous term. Starting with 4, the second term is 4 + (2^2) = 9. The third term is 9 + (3^2) = 18, and so on. Therefore, the missing term after 19 would be 19 + (4^2) = 39.

The identity property states that any number added to zero is equal to the number itself. In this case, adding any number to zero will result in the same number. Therefore, the correct answer is 1.

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The down payment of $3,000 is the initial amount paid for the car. The 6 monthly payments of $225 each add up to $1,350. Adding the down payment and the monthly payments together, the total amount paid so far for the car is $3,000 + $1,350 = $4,350. Therefore, the correct answer is $4,350.

The given equation states that if r is equal to 5 times z, then 15 times z is equal to 3 times y. To find the value of r, we need to isolate it in terms of y. We can do this by dividing both sides of the equation by 15z, which gives us y/5z. Therefore, r is equal to y/5z, which can also be written as y/5. Hence, the answer is y.

The circumference of a circle can be found by multiplying the diameter by pi (π), which is approximately 3.14. In this case, the diameter is given as 8, so the circumference would be 8 * 3.14 = 25.12. The closest option to this value is 25.13, so that is the correct answer.

A reflex angle is an angle that measures greater than 180 degrees but less than 360 degrees. It is formed by extending one of the arms of the angle beyond a straight line. This type of angle is larger than a straight angle (180 degrees) and smaller than a full revolution (360 degrees). Therefore, a reflex angle is the correct term for an angle greater than 180 degrees.

Cups would be an appropriate unit to measure sugar for a cookie recipe because it is a commonly used unit of measurement for dry ingredients, such as sugar, in cooking and baking. Cups provide a convenient and accurate way to measure the amount of sugar needed for a recipe, ensuring the right balance of sweetness and texture in the cookies.

0.5% is equivalent to 0.005 as a decimal. To convert this decimal to a fraction, we can write it as 5/1000. Simplifying this fraction gives us 1/200, which is the same as 0.5%. Therefore, the equivalent fraction of 0.5% is 1/200.

To round 907.457 to the nearest tens place, we look at the digit in the ones place, which is 7. Since 7 is greater than or equal to 5, we round up the tens place. Therefore, the tens place becomes 1 and the ones place becomes 0. Hence, the rounded number is 907.5.

Explanatory methods are used in subject-centered curriculum. This type of curriculum focuses on the subjects or academic disciplines, with the goal of transmitting knowledge and information to students. In a subject-centered curriculum, teachers use explanatory methods to present the content and concepts of each subject to the students. These methods may include lectures, demonstrations, discussions, and other instructional strategies that help students understand and grasp the subject matter. The emphasis is on the teacher as the primary source of knowledge and the students as passive recipients of information.

Leah is 6 years older than Sue, and John is 5 years older than Leah. If we let Sue's age be x, then Leah's age would be x+6, and John's age would be x+6+5=x+11. The total of their ages is 41, so we can set up the equation x + (x+6) + (x+11) = 41. Simplifying this equation, we get 3x + 17 = 41. Subtracting 17 from both sides, we get 3x = 24. Dividing both sides by 3, we get x = 8. Therefore, Sue is 8 years old.

The given expression is 34(58+9). To simplify this expression, we first calculate the value inside the parentheses, which is 58+9=67. Then, we multiply 34 by 67 to get the result of 2278. Therefore, the expression 34 x 58 + 34 x 9 is not equal to 34(58+9).

The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 81 is 9 because 9 multiplied by 9 equals 81. Therefore, the correct answer is 9.

The fraction 6/8 is equivalent to 3/4 because both fractions can be simplified to 3/4 by dividing the numerator and denominator by 2. Therefore, 6/8 is not the correct answer.

The fraction 7/8 is greater than 2/3 because the numerator (7) is greater than the numerator of 2/3 (2). Therefore, 7/8 is not less than 2/3.