The ULTIMATE 4th Grade Math Worksheets Bundle by Educational Emporium - Free Printable

Here is the complete solution to the 5-A-Day Math Review: Week 2 worksheet, broken down by day and problem.

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## 📅 Monday

① Factors

List all the factors for each number:

- 2: 1, 2
- 5: 1, 5
- 7: 1, 7
- 10: 1, 2, 5, 10
- 12: 1, 2, 3, 4, 6, 12

✔ *Factors are numbers that divide evenly into the given number.*

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② Round 48,492 to the nearest...

- Nearest 100: Look at the tens digit (9). Since 9 ≥ 5, round up.
→ 48,500

- Nearest 1,000: Look at the hundreds digit (4). Since 4 < 5, round down.
→ 48,000

- Nearest 10,000: Look at the thousands digit (8). Since 8 ≥ 5, round up.
→ 50,000

✔ *Rounding rules: Look at the digit to the right of your target place. If 5 or more, round up; if less than 5, round down.*

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③ Multiplication Pattern

Given:
`8 × 10 = 80`
→ `__ × 10 = 800` → 80 (because 80 × 10 = 800)
→ `800 × __ = 8,000` → 10 (because 800 × 10 = 8,000)
→ `8,000 × 10 = __` → 80,000

✔ *Each time you multiply by 10, you add a zero to the end.*

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④ Complete the Table

| IN | OUT |
|----|-----|
| 2 | 6 |
| 3 | 9 |
| 4 | 12 |
| ? | ? |

Rule: Multiply IN by 3 → OUT = IN × 3

So next row:
IN = 5 → OUT = 15

✔ *Pattern: 2×3=6, 3×3=9, 4×3=12 → Rule: “Multiply by 3”*

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⑤ Metric Conversion

- 1 meter = ___ centimeters → 100 centimeters
- 300 centimeters = ___ meters → 3 meters

Equations:

- `1 × 100 = 100` (to convert meters to cm)
- `300 ÷ 100 = 3` (to convert cm to meters)

✔ *Metric conversion: 1 meter = 100 cm. To go from m → cm, multiply by 100. To go from cm → m, divide by 100.*

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## 📅 Tuesday

① Solve. Shade in to represent.

`1/2 = □/4`

To find equivalent fraction: Multiply numerator and denominator by 2 →
`1/2 = 2/4`

Shade: First circle (halved) → shade 1 half. Second circle (quartered) → shade 2 quarters.

✔ *Equivalent fractions: 1/2 = 2/4*

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② Solve. Shade in to represent.

`1/4 + 2/4 = ?`

Add numerators: `1 + 2 = 3` → 3/4

Shade 3 out of 4 boxes in the rectangle.

✔ *Adding fractions with same denominator: add numerators, keep denominator.*

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③ Multiply using grid method

#### First: `34 × 28`

Break it down:
- 30 × 20 = 600
- 30 × 8 = 240
- 4 × 20 = 80
- 4 × 8 = 32

Add them:
`600 + 240 = 840`
`80 + 32 = 112`
`840 + 112 = 952`

✔ So, 34 × 28 = 952

#### Second: `74 × 36`

Break it down:
- 70 × 30 = 2100
- 70 × 6 = 420
- 4 × 30 = 120
- 4 × 6 = 24

Add them:
`2100 + 420 = 2520`
`120 + 24 = 144`
`2520 + 144 = 2664`

✔ So, 74 × 36 = 2664

*(You can fill the grid with these partial products as shown in the worksheet.)*

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④ Associative Property

Complete:
`3 × (4 × 2) = (3 × __) × 2`

Associative property says: `(a × b) × c = a × (b × c)`

So:
`3 × (4 × 2) = (3 × 4) × 2`

Now compute:
`3 × 8 = 12 × 2` → `24 = 24`

✔ Fill in:
- First blank: 4
- Second: `3 × 8`
- Third: `12 × 2`
- Fourth and fifth: 24 = 24

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⑤ Word Problem

> A pet store sold 2 birds. They sold 6 times as many turtles as they sold birds. How many turtles did they sell?

Solution:
Turtles = 6 × birds = 6 × 2 = 12

✔ Answer: 12 turtles

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## ✔ Final Answers Summary:

Monday:

1. Factors:
- 2: 1,2
- 5: 1,5
- 7: 1,7
- 10: 1,2,5,10
- 12: 1,2,3,4,6,12
2. Rounding:
- 100: 48,500
- 1,000: 48,000
- 10,000: 50,000
3. Multiplication:
- 80 × 10 = 800
- 800 × 10 = 8,000
- 8,000 × 10 = 80,000
4. Table:
- Rule: Multiply by 3
- Next: IN=5, OUT=15
5. Metric:
- 1 meter = 100 cm → 1 × 100 = 100
- 300 cm = 3 m → 300 ÷ 100 = 3

Tuesday:

1. `1/2 = 2/4` → Shade 2/4 of the second circle.
2. `1/4 + 2/4 = 3/4` → Shade 3 boxes.
3. Multiplication:
- 34 × 28 = 952
- 74 × 36 = 2664
4. Associative Property:
- `3 × (4 × 2) = (3 × 4) × 2`
- `3 × 8 = 12 × 2`
- `24 = 24`
5. Turtles: 12

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