7 times table and division facts

Understanding the 7 Times Table

• Importance of Learning the 7 Times Table: Understanding the 7 times table is practical for everyday scenarios. For instance, there are 7 days in a week, making it a frequently used number set. Knowing multiples of 7 can assist in various situations, such as counting down to events or holidays.
• Examples of the 7 Times Table:
  
• Calculating Days from Weeks: To determine the number of days in a certain number of weeks, such as 15 weeks, we can use the 7 times table. For example, 15 x 7 equals 105 days, which can be calculated by adding 10 x 7 (70) and 5 x 7 (35).

Examples

Example 1: Jian accidentally ordered 630 balloons for a party. Each packet contains 70 balloons. How many packets did Jian order?
Sol: To solve this problem, you will have to divide.
630 ÷ 70 = ?
Both 630 and 70 are ten times greater than they appear in the times table.
You can use your knowledge of dividing by 10 to divide both numbers so that they are more manageable.
Both numbers must be divided by 10 to get the correct answer.
Now you can see that the answer is 9, so Jian ordered 9 packs of balloons.

Example 2: Emma goes on holiday in 15 weeks. How many days is that?
Sol: So far, we've only looked at the 7 times table up to 12 × 7.
How could you work out 15 × 7?
One way would be to work out 10 × 7 and 5 × 7 and then add them together.
Any combination of facts would work, as long as the total number of weeks is 15.
10 × 7 = 70
5 × 7 = 35
Then add the add those answers together.
70 + 35 = 105
Therefore, 15 weeks is the same as 105 days.