# Math is Fast – MSC #1: By One More Than the One Before

- What is the value of 23.512 to the nearest whole number.

Ans: The decimal part, 0.512 is more than half of 1, so the nearest whole number is **one more than** 23, **the number before** it, or **24.**

**2**. What is the floor area of a square room measuring 45 ft on each side?

Ans: **A = s ^{2} = 45^{2} =**

The answer is in two parts: The first part is obtaining the multiplying the **number before** **5**, which is **4** by **one more than** itself, **5**. The second part is always **25** (5 x 5). **A = s ^{2} = 25^{2} = 4 x 5| 5 x 5 = 20|25 = 2025 ft^{2}**

3. A parking lot has 26 slots per row. If it has 24 rows, how many vehicles can park in the lot?

Ans:** n = 26 x 24 =**

The units digit add up to ten and the ten’s digits are the same. By One more than the one before can be applied here.

**n = 26 x 24 = 2 x 3|6 x 4 = 6|24 = 624 vehicles**

4. **9 3/8 x 9 5/8 =**

Ans: The whole number part is the same while the fractions add up to 1 .

**9 x 10 | 3/8 x 5/8 = 90 15/64**

5. A rectangular table measures 4′ 2″ by 4′ 10″. What is its area in square feet and square inches?

Ans: 2″ and 10″ make a whole foot, so this Sutra can be used here. 4′ 2″ x 4′ 10″ = 4′ x 5′ | 2″ x 10″ = 20 square feet and 20 square inches.