Question

equation match directions: circle the equation that matches the diagram shown above. 1. diagram: 345 and six 5s, total? a. ? = (5 × 6) − 345 b. ? = 5 + 6 + 345 c. ? = (6 × 5) + 345 2. diagram: ? and eight 7s, total 492 a. (8 × 7) + 492 = ? b. 492 − (8 × 7) = ? c. ? + 492 = 7 3. diagram: three ?s and 583, total 613 a. 613 = (3 × ?) + 583 b. 583 = 613 + (3 × ?) c. 613 + 583 = 3 × ? 4. diagram: ? and four 3s, total 762 a. ? = 762 + 3 + 3 + 3 + 3 b. 764 + ? = (3 × 4) c. (3 × 4) + ? = 762 5. write an equation to match the diagram below. diagram: five 10s and 152, total?

Explanation:

Question 1

Step1: Analyze the diagram

The diagram has 345 and six 5s. So total is 345 + (6×5).

Step2: Check options

• Option a: $(5×6) - 345$ is wrong (subtraction).
• Option b: $5 + 6 + 345$ is wrong (adds 5 and 6, not 6 fives).
• Option c: $(6×5)+345$ matches.

Step1: Analyze the diagram

Total is 492, which is? + eight 7s. So? = 492 - (8×7).

Step2: Check options

• Option a: $(8×7)+492$ is wrong (adds).
• Option b: $492 - (8×7)$ matches.
• Option c: $? + 492 = 7$ is wrong (total can't be 7).

Step1: Analyze the diagram

Total is 613, which is three?s + 583. So $613=(3×?)+583$.

Step2: Check options

• Option a: $613=(3×?)+583$ matches.
• Option b: $583 = 613+(3×?)$ is wrong (583 < 613).
• Option c: $613 + 583 = 3×?$ is wrong (sum is too big).

Answer:

c. $? = (6 × 5) + 345$

Question 2