Contents
- 1 What is the making 10 strategy?
- 2 How many ways can you make 10?
- 3 What are counting strategies?
- 4 How do you teach a bridging 10?
- 5 What happens every time you add 10 to a number?
- 6 How do you explain 10 more and 10 less?
- 7 How do you find 10 more than any number?
- 8 How many ways can you make 8?
- 9 What are the number bonds to 10?
What is the making 10 strategy?
In 1st grade, as students begin learning their basic addition facts, they apply that knowledge in a strategy known as “make a ten” to help make sense of facts that might otherwise be hard to memorize, such as 8 + 4 or 9 + 5. To use the strategy, students decompose one of the addends to make a ten from the other.
How many ways can you make 10?
There are 11 ways to make ten.
What are counting strategies?
Counting On is a beginning mental math strategy for addition. Counting on means that you start with the biggest number and then count up from there. For example, to add 5+3, start with the “5” and then count up, “6, 7, 8.” This is to discourage students from counting like this: “1, 2, 3, 4, 5…..
How do you teach a bridging 10?
Teachers will most likely teach the bridging through 10 method by giving a demonstration on the board, and then by giving the children a worksheet with number lines already drawn for them on which to work out their sums.
What happens every time you add 10 to a number?
The ones digit remains the same when you add ten. The tens digit increases by 1 every time you add ten.
How do you explain 10 more and 10 less?
Explain that because the tens digit only changes by 1, we can find 10 more or 10 less by mentally adding or subtracting 1 to the number of tens. I model this by selecting a number and asking students to determine what number is 10 more and what number is 10 less.
How do you find 10 more than any number?
To find 10 more than a number, add 1 to the digit at the tens place. To find 10 less than a number, subtract 1 from the digit at the tens place. For example: Let’s find 10 less than the number 47.
How many ways can you make 8?
Note: 8 items have a total of 40,320 different combinations.
What are the number bonds to 10?
What are number bonds to 10? Number bonds to 10 are pairs of numbers that, when added together, give the number 10. They can also be called ‘number pairs’ or ‘number partners’. Examples are 1 & 9, 7 & 3 and 5 & 5.