Sally add 9 to 27. explain how she can use the make 10 strategy to solve the problem.
2 answers:
Answer:
If we add two numbers or more than two numbers then make ten strategy is a basic strategy to learn addition .
In this strategy we break the smaller number in terms to make the larger number equals to ten or tens .
For example :-
Now, the given addition problem is
Here we break 9 to make 27 equals to 30 or 3 tens.
We can write,
Such that
hence,
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Answer:
- y = 242.4
- x = 437.3
First find the inner angle:
- 90° - 29°
- 61°
[ given hypotenuse = 500 ft ]
using sine rule:
using pythagoras theorem:
- a² + b² = c²
- y² + (437.3)² = 500²
- y = √58760.1
- y = 242.4