Test: Mathematical Operations - Class 5 MCQ

According to BODMAS, the correct order of operations is Division ? Multiplication ?Addition - Subtraction.

The identity property of addition states that adding zero to any number does not change the number.

• Option B: 0 + 3 = 3 demonstrates this property.
• This equation shows that adding 0 to 3 results in 3, keeping the original number unchanged.

To find what should be subtracted from 14y to get 8, follow these steps:

• Start with the equation: 14y - x = 8.
• Rearrange to find x: x = 14y - 8.

Therefore, the value of x is 14y - 8.

To find the value of 2a, follow these steps:

• Start with the equation: 4a + 3 = 15.
• Subtract 3 from both sides: 4a = 12.
• Divide both sides by 4 to solve for a: a = 3.
• Multiply a by 2 to find 2a: 2a = 6.

Therefore, the value of 2a is 6.

To find out how many mangoes are in 75 boxes, follow these steps:

• There are a total of 5000 mangoes in 100 boxes.
• This means each box contains 50 mangoes (since 5000 ÷ 100 = 50).
• For 75 boxes, multiply the mangoes per box by the number of boxes: 50 × 75.
• This calculation gives 3750 mangoes in 75 boxes.

Thus, the correct answer is 3750 mangoes.

To find how many notes Fatima has, let's set up the situation using variables:

• Let x be the number of each type of note.
• Fatima has Rs. 10, Rs. 5, and Rs. 2 notes.
• The total amount is Rs. 510.

Each type of note contributes to the total amount:

• 10x from Rs. 10 notes.
• 5x from Rs. 5 notes.
• 2x from Rs. 2 notes.

The equation is:

• 10x + 5x + 2x = 510

Simplify the equation:

• 17x = 510

Solving for x:

• x = 510 / 17 = 30

Therefore, Fatima has 30 notes of each denomination.

To find the total number of spoiled roses:

• There are 1,82,039 roses in total.
• Every 13th rose is spoiled.

Calculate the number of spoiled roses:

• Divide the total number of roses by 13:
  1,82,039 ÷ 13 = 14,003

Therefore, the total number of spoiled roses is 14,003.

The task involves using the multiplication operation to evaluate the given numbers.

• Multiply each number by itself to find the product.
• Compare the results to determine the correct answer.

The correct evaluation leads to option C.

881 + 88 = 969

2547 + 9998 = 12545

Look for numbers in the box that are less than 2.7. Try 0.2. Now we have to find the number which when added to 0.2 gives 2.7. That number is 2.5. thus 2.5 + 0.2 =2.7. 

428.65 + 500.5 = 929.15 [Since 500.5 = 500.50]

Solution:

• Tamana bikes 2.2 kilometres each day.
• She bikes for 10 school days.
• To find the total distance: multiply the daily distance by the number of days.
• 2.2 km × 10 days = 22 kilometres.

Therefore, Tamana will bike a total of 22 kilometres over 10 school days.

Add the numbers of kilograms. Remember to line up the decimal points 6.6 + 5.8 = 12.4 The chef bought 12.4 kilograms of nuts.

Divide the number of nails by the number in each package. 6/6=1 The builder should purchase 1 package.

Subtract the numbers of centimetres. Remember to line up the decimal points. 4.8 - 0.9 = 3.9 The piece of wood is 3.9 centimetres long now.       

Add the kilograms. 77,449 + 503 = 77952 kilograms. A total of 77,952 kilograms of fruit have been sold.

To find out what the scale will read when 2 weights are placed on it:

• Each weight is 8.4 kilograms.
• Multiply the weight of one by the number of weights: 8.4 kg × 2.
• The scale will read 16.8 kilograms.

Subtract the number of adults served from the total number of guests. 8805 ? 8704 = 101 Thus the chef has served 101 children.

To find the total cost of buying 4 birthday cards, follow these steps:

• Each card costs Rs. 2.37.
• Multiply the cost of one card by 4:
• Rs. 2.37 * 4 = Rs. 9.48

Therefore, the total cost is Rs. 9.48.