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Question
One week has 7 days. Calculate the number of days in 10 weeks?
Sum
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Solution
Number of days in a week = 7
Number of days in 10 weeks = 7 × 10
= 70 days
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Multiplication by Lattice Algorithm ( up to 2 Digit Number by 2 Digit Number and 3 Digit Number by Single Digit Number)
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9 × 7 = `square`
8 × 4 = `square`
9 × 10 = `square`
Complete the 10th table:
From the tables 1 to 9 we will know the following:
Complete the following:
| 10 × 1 = 10 | 10 × 1 = 10 |
| 10 × 2 = 20 | 10 × 2 = 20 |
| 10 × 3 = 30 | 10 × 3 = 30 |
| 10 × 4 = 40 | 10 × 4 = 40 |
| 10 × 5 = 50 | _____________ |
| 10 × 6 = 60 | _____________ |
| 10 × 7 = 70 | _____________ |
| 10 × 8 = 80 | _____________ |
| 10 × 9 = 90 | 10 × 9 = 90 |
| 10 × 10 = 100 | _____________ |
Multiply by 10, 100, 1000
Fill in the boxes.
- 10 × 7 = 70
- 100 × 16 = `square`
- 1000 × 9 = 9000
- 10 × 696 = `square`
- 100 × 96 = 9600
- 1000 × 6 = `square`
Write the number as the product of two numbers.

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