Free Printable Gr10 Lesson 3: Surds and integers

1.

Estimate the value of $\sqrt[]{45}$

(Bepaal die waarde van $\sqrt[]{45}$ )

a)

$6<\sqrt[]{45}<7$

b)

$6>\sqrt[]{45}>7$

c)

$36<\sqrt[]{45}<49$

d)

$44<\sqrt[]{45}<46$

2.

Estimate the value of $\sqrt[]{27}$

(Bepaal die waarde van $\sqrt[]{27}$ )

a)

3 and (en) 4

b)

25 and (en) 36

c)

5 and (en) 6

d)

4 and (en) 5

3.

Estimate the value of $\sqrt[]{17}-4$

(Bepaal die waarde van $\sqrt[]{17}-4$ )

a)

$0<\sqrt[]{17}-4<1$

b)

$0>\sqrt[]{17}-4>1$

c)

$1<\sqrt[]{17}-4<0$

d)

$1<\sqrt[]{17}<0$

4.

Express $2\sqrt{3}$ as a square root of a positive integer.

(Druk $2\sqrt{3}$ as 'n vierkantswortel van 'n heelgetal uit)

a)

$\sqrt{18}$

b)

$4\sqrt{3}$

c)

$\sqrt{6}$

d)

$\sqrt{12}$

5.

Is the number rational or irrational?
(Is die getal rasionaal of irrasioneel?)

a)

Rational
(rasionaal)

b)

Irrational
(irrasioneel)

6.

Any number that cannot be written as a fraction is called...
(Enige getal wat nie as 'n breuk geskryf kan word nie, word genoem...)

a)

Irrational
(Irrasioneel)

b)

Rational
(Rasioneel)

c)

Whole
(Heel)

7.

Is the number rational or irrational?
(Is die getal rasionaal of irrasioneel?)

a)

Rational
(rasionaal)

b)

Irrational
(irrasioneel)

Gr10 Lesson 3: Surds and integers

Total questions: 7

Worksheet time: 5mins

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