The following irrational number is between which two whole numbers?
√60 ___and___
7 and 8
200
Use 2.24 as an approximation of √5
A square has side √5m, estimate the perimeter of the square.
___x___=___m
4 x 2.24 = 8.96
200
*BOARD QUESTION!!! (NEXT SPOKESPERSON FROM EACH GROUP GO TO THE BOARD AND SOLVE THE PROBLEM. EACH WILL RECEIVE THE POINTS IF ANSWERED CORRECTLY! :D)
Approximate the values of the following expression. Round to the nearest hundredth, where necessary.
√2 x √5 ≈ ___ x ___=____
1.41 x 2.24 = 3.16
300
What is a perfect square, and can you come up with an example?
A number multiplied by itself.
1, 4, 9, 16, 25, 36, 49, 64, 81, 100...
300
Is the following number rational or irrational? Why?
√40?
The following irrational number are between which two whole numbers?
√17 ___and ___
4 and 5
300
What is the area of a square with a side length:
√6? ___ square units
A=s²
A=(√6)² = √6 x √6 = √36 = 6 square units.
300
Approximate the values of the following expression. Round to the nearest hundredth, where necessary.
ℼ + √2 ≈ ___+___=___
3.14 + 1.41 = 5.55
400
Cannot be written in the form a/b, where a and b are integers and b is not 0. Decimal form continues forever, but never shows a repeating pattern of digits.
Irrational Numbers
400
Is the following number rational or irrational? Why?
√ℼ
*BOARD QUESTION!!! (NEXT SPOKESPERSON FROM EACH GROUP GO TO THE BOARD AND SOLVE THE PROBLEM. EACH WILL RECEIVE THE POINTS IF ANSWERED CORRECTLY! :D)
Between which two tenths is the decimal approximation of √6?
√6 ___ and ___
2.4 and 2.5
400
Write an expression for the EXACT perimeter of a square with a side length of √5mm?
___x___
4 x √5
400
*BOARD QUESTION!!! (NEXT SPOKESPERSON FROM EACH GROUP GO TO THE BOARD AND SOLVE THE PROBLEM. EACH WILL RECEIVE THE POINTS IF ANSWERED CORRECTLY! :D)
Approximate the values of the following expression. Round to the nearest hundredth, where necessary.
(√5)² ≈ ___x___=____
2.24 x 2.24 = 5.02
500
Number that can be written in the form a/b, where a and b are integers and b is not 0. Decimal form either terminates or continues forever in a repeating pattern.
Rational number
500
Is the following number rational or irrational? Why?
√88?
The following irrational number are between which two whole numbers?
√85 ___ and ___
9 and 10
500
*BOARD QUESTION!!! (NEXT SPOKESPERSON FROM EACH GROUP GO TO THE BOARD AND SOLVE THE PROBLEM. EACH WILL RECEIVE THE POINTS IF ANSWERED CORRECTLY! :D)
Use an APPROXIMATION value for the irrational factor
√5mm=2.24mm, ℼ=3.14 √5xℼ=...
___ x ___ = ____mm
Round to the nearest hundredth.
2.24mm x 3.14 = 7.03mm
500
*BOARD QUESTION!!! (NEXT SPOKESPERSON FROM EACH GROUP GO TO THE BOARD AND SOLVE THE PROBLEM. EACH WILL RECEIVE THE POINTS IF ANSWERED CORRECTLY! :D)
Explain why it is possible to find the exact area of a square with side length of √2mm. What is the exact area?
A square has 4 equal sides. If all the sides are the same and the area of a square is: A=s or A=LW, then we would find the exact area by:
A=s²
A=(√2mm)² = √2mm x √2mm = √4mm² = 2mm²