2nd Grade Mental Math Worksheet A6 with various arithmetic and practical math questions.

Let's solve each problem step by step:

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1. \( 4 + 7 + 6 \)

- Add the numbers step by step:
\[
4 + 7 = 11
\]
\[
11 + 6 = 17
\]
- Answer: \( 17 \)

---

2. Subtract 3 from 15

- Perform the subtraction:
\[
15 - 3 = 12
\]
- Answer: \( 12 \)

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3. How many 2s make 12?

- This is a division problem: \( 12 \div 2 \)
\[
12 \div 2 = 6
\]
- Answer: \( 6 \)

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4. \( 300 + \_\_ + 4 = 354 \)

- Let the missing number be \( x \). The equation is:
\[
300 + x + 4 = 354
\]
- Simplify:
\[
304 + x = 354
\]
- Solve for \( x \):
\[
x = 354 - 304 = 50
\]
- Answer: \( 50 \)

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5. How much money?

- The image shows:
- 3 quarters (\( 3 \times 25 \text{ cents} = 75 \text{ cents} \))
- 2 dimes (\( 2 \times 10 \text{ cents} = 20 \text{ cents} \))
- 1 nickel (\( 1 \times 5 \text{ cents} = 5 \text{ cents} \))
- Total:
\[
75 + 20 + 5 = 100 \text{ cents} = 1 \text{ dollar}
\]
- Answer: \( \$1.00 \)

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6. What is the next number? \( 58, 60, 62, 64, 66, 68, \_\_ \)

- The sequence increases by 2 each time:
\[
68 + 2 = 70
\]
- Answer: \( 70 \)

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7. What number is 10 more than 39?

- Add 10 to 39:
\[
39 + 10 = 49
\]
- Answer: \( 49 \)

---

8. \( 5 \times 2 = 7 + \_\_ \)

- Calculate \( 5 \times 2 \):
\[
5 \times 2 = 10
\]
- Set up the equation:
\[
10 = 7 + x
\]
- Solve for \( x \):
\[
x = 10 - 7 = 3
\]
- Answer: \( 3 \)

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9. How many minutes in a quarter of an hour?

- A quarter of an hour is:
\[
\frac{1}{4} \times 60 \text{ minutes} = 15 \text{ minutes}
\]
- Answer: \( 15 \)

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10. What is the time?

- The clock shows:
- Hour hand between 1 and 2 (closer to 1)
- Minute hand on 7 (which represents 35 minutes past the hour)
- Time: \( 1:35 \)
- Answer: \( 1:35 \)

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11. 1 pound = 16 ounces. How many ounces in 2 pounds?

- Multiply:
\[
2 \times 16 = 32 \text{ ounces}
\]
- Answer: \( 32 \)

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12. 2 dimes + 4 nickels

- Value of 2 dimes:
\[
2 \times 10 \text{ cents} = 20 \text{ cents}
\]
- Value of 4 nickels:
\[
4 \times 5 \text{ cents} = 20 \text{ cents}
\]
- Total:
\[
20 + 20 = 40 \text{ cents}
\]
- Answer: \( 40 \text{ cents} \)

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13. The date is 6th March. What will the date be in 3 months' time?

- March + 1 month = April
- April + 1 month = May
- May + 1 month = June
- The date remains the same: 6th
- Answer: \( 6^{\text{th}} \text{ June} \)

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14. 5 feet = \_\_ yards \_\_ feet

- 1 yard = 3 feet
- Convert 5 feet:
\[
5 \div 3 = 1 \text{ yard and } 2 \text{ feet (remainder)}
\]
- Answer: \( 1 \text{ yard } 2 \text{ feet} \)

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15. Which of these numbers is even? \( 47, 51, 76, 87, 93 \)

- Even numbers are divisible by 2:
- \( 47 \): odd
- \( 51 \): odd
- \( 76 \): even
- \( 87 \): odd
- \( 93 \): odd
- Answer: \( 76 \)

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16. How many socks in 10 pairs?

- 1 pair = 2 socks
- 10 pairs:
\[
10 \times 2 = 20 \text{ socks}
\]
- Answer: \( 20 \)

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Final Answers:

\[
\boxed{
\begin{array}{l}
1. 17 \\
2. 12 \\
3. 6 \\
4. 50 \\
5. \$1.00 \\
6. 70 \\
7. 49 \\
8. 3 \\
9. 15 \\
10. 1:35 \\
11. 32 \\
12. 40 \text{ cents} \\
13. 6^{\text{th}} \text{ June} \\
14. 1 \text{ yard } 2 \text{ feet} \\
15. 76 \\
16. 20 \\
\end{array}
}
\]