Number - Year 8 - Bidmas
Working out sums applying BIDMAS
Questions and Answers
- 1.
9 x 7 + 3 =
Explanation
The given expression is 9 multiplied by 7, which equals 63. Then 3 is added to 63, resulting in a final answer of 66.Rate this question:
- 2.
9 + 4 x 3 =
Explanation
The given expression follows the order of operations, which states that multiplication should be done before addition. Therefore, we first multiply 4 by 3, resulting in 12. Then, we add 9 to 12, which equals 21.Rate this question:
- 3.
9 x (7 + 3) =
Explanation
The given equation is a simple multiplication problem. To solve it, we need to first calculate the sum inside the parentheses, which is 7 + 3 = 10. Then, we multiply this sum by 9, resulting in 9 x 10 = 90. Therefore, the correct answer is 90.Rate this question:
- 4.
3 + 5 x 6 =
- 5.
30 - 20 ÷ 2 =
Explanation
The given expression involves subtraction and division. According to the order of operations, division should be performed before subtraction. So, we start by dividing 20 by 2, which gives us 10. Then, we subtract 10 from 30, resulting in the answer of 20.Rate this question:
- 6.
1.2 + 1.4 x 5 =
Explanation
The given expression involves addition and multiplication. According to the order of operations, multiplication should be performed before addition. Therefore, we first multiply 1.4 by 5, which gives us 7. Then, we add 1.2 to the result, which gives us 8.2. Hence, the correct answer is 8.2.Rate this question:
- 7.
8.4 + 1.6 ÷ 2 =
Explanation
The given expression involves addition and division. According to the order of operations, division should be performed before addition. So, first, we divide 1.6 by 2, which equals 0.8. Then, we add 8.4 to 0.8, resulting in 9.2. Therefore, the answer is 9.2.Rate this question:
- 8.
30 ÷ (1.2 + 1.3) =
Explanation
The given expression is a division problem. In the expression, we have 30 divided by the sum of 1.2 and 1.3. When we add 1.2 and 1.3, we get 2.5. So, the expression becomes 30 divided by 2.5. When we divide 30 by 2.5, the result is 12. Therefore, the answer to the expression is 12.Rate this question:
- 9.
5 + 1.2 x 10 - 1.4 x 5 =
Explanation
The given expression involves addition, multiplication, and subtraction. Following the order of operations, we first perform the multiplications: 1.2 x 10 = 12 and 1.4 x 5 = 7. Then we perform the additions and subtractions: 5 + 12 - 7 = 10. Therefore, the answer is 10.Rate this question:
- 10.
3 + 22 =
- 11.
3 x 32 + 4
- 12.
80 - 3 x 52 =
Explanation
The given expression involves the subtraction of the product of 3 and 52 from 80. Multiplying 3 and 52 gives us 156. Subtracting 156 from 80 results in 76. Therefore, the correct answer is 76.Rate this question:
- 13.
25 - 22 x 2 =
Explanation
The given expression is 25 - 22 x 2. According to the order of operations, multiplication should be done before subtraction. So, we first multiply 22 and 2, which gives us 44. Then, we subtract 44 from 25, resulting in 17. Therefore, the correct answer is 17.Rate this question:
- 14.
(4 + 23) x 8 =
Explanation
The given expression requires us to first perform the addition inside the parentheses, which results in 27. Then, we multiply this sum by 8, giving us a final answer of 216.Rate this question:
- 15.
(2 + 5) x 32 =
Explanation
The given expression is a combination of addition and multiplication. First, we perform the addition inside the parentheses, which results in 7. Then, we multiply 7 by 32, which gives us the answer of 224. However, the given answer is 63, which is incorrect. Therefore, the correct answer for this question is not 63.Rate this question:
- 16.
30 - 12 + 5 =
Explanation
The given expression involves subtraction and addition operations. We start with 30 and subtract 12, which gives us 18. Then, we add 5 to 18, resulting in 23. Therefore, the correct answer is 23.Rate this question:
- 17.
102 - 4 x 10 =
Explanation
In the given expression, 4 is multiplied by 10 first, resulting in 40. Then, 102 is subtracted by 40, giving the final answer of 60.Rate this question:
- 18.
10 + 52 ÷ 2 =
Explanation
The given expression involves addition and division. According to the order of operations, division should be performed before addition. Therefore, first, we divide 52 by 2, which equals 26. Then, we add 10 to 26, resulting in 36. So, the correct answer is 36.Rate this question:
- 19.
32 x 23 + 4 x 2 =
Explanation
The given expression involves multiplication and addition operations. First, we perform the multiplication operation: 32 x 23 = 736. Then, we perform the multiplication operation: 4 x 2 = 8. Finally, we perform the addition operation: 736 + 8 = 744. However, the correct answer given is 80, which is incorrect. Therefore, the correct answer is not 80.Rate this question:
- 20.
(2 + 52) + 4 x 2 =
Explanation
The given expression follows the order of operations, which states that multiplication should be done before addition. So, first, we need to calculate 4 x 2, which equals 8. Then, we add the result to the sum of 2 + 52, which equals 54. Therefore, the final answer is 54 + 8 = 62. Since the given answer is 35, it is incorrect.Rate this question:
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Apr 05, 2024Quiz Edited by
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Sep 11, 2016Quiz Created by
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