MCQ
Which of the following is not true?
- A(7 + 8) + 9 = 7 + (8 + 9)
- B(7 × 8) × 9 = 7 × (8 × 9)
- ✓7 + 8 × 9 = (7 + 8) × (7 + 9)
- D7 × (8 + 9) = (7 × 8) + (7 × 9)
✓
Answer
Correct option: C.
7 + 8 × 9 = (7 + 8) × (7 + 9)
C
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
${60} = \frac{\text{b}}{4}\sqrt{{4}\times{13}^{2}}$
→Mark the correct alternative of the following.
The angles of a triangle are in the ratio $2 : 3 : 7.$ The measure of the largest angle is$?$
→The angles of a triangle are in the ratio $2 : 3 : 7.$ The measure of the largest angle is$?$
The weights of $9$ apples are $50, 60, 65, 62, 67, 70, 64, 45, 48$ grams Their mean weight is:
→$(-10) × (-5) + (-7)$ is equal to:
→What must be added to each term of the ratio $9 : 16$ to make the ratio $2 : 3$?
→There are $7$ observations in the data and their mean is $11$. If each observation is multiplied by $2,$ then the mean of new observations is:
→If $⊗, O,$ and $•$ represent some integers on number line, then descending order of these numbers is.
→$5.2$ is equal to:
→Each side of an equilateral triangle is equal to the radius of a circle whose area is $154\ cm^2$. The area of the triangle is:
→Identify the equation: $3\text{x}^2+\frac{7}{\text{x}}-7\text{x}$
→