1TTO Ch8: Refresh, §8.1, 8.2 and 8.3

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

Welcome!

8.3 and earlier contents

Zach Williams

HW: 8.3: 27 + 28  T3 en T4 (page 40)

what decimal number corresponds to d?

what decimal number corresponds to a?

Which fraction belongs to 0.3 ?

1. ​3​​1​​
2. ​10​​3​​
3. ​27​​9​​
4. ​40​​12​​

Explanation:

0.3 is the same as 

but not as        ,

because that is  0.333333333........

with an infinite number of threes!

​10​​3​​

​3​​1​​

In the next slides your answer will be automatically checked! In some cases also an explanation is included.

The sum of 24 and 12 is

The difference of 24 and 10 is

The product of 24 and 10 is

The result of (6+2)x5=

The result of (6-2)x5=

The result of 12 + 5x3=

The result of (7+2)x(3+4)=

The result of 100:2 + 5x4=

The result of (10+2)-6x2=

The result of 2x2x2x2=

The result of

3​4​​=

choose the correct answer

2​5​​

1. 2 is the exponent
2. 5 is the power
3. 2 is the base
4. 5 is the base

choose the correct answer

3​4​​

1. 3 is the exponent
2. 4 is the exponent
3. 3 is the base
4. 4 is the base

Calculate:

4+2​3​​=

Something new(?):

For a multiplication you can use:

1.            x      or also

2.         a point, like this:      

             So the point is higher than in 6.7 which means 'six point seven'!

5⋅4=20

Calculate:

4⋅2​3​​=

Calculate:

9​2​​−4⋅2​3​​=

Calculate:

5+3​3​​⋅(2+3)=

0.3+0.4=

0.2⋅4+0.3=

0.1⋅60=

945⋅0.01=

3.4+2.6 x 10 : 2=

explanation:

Remember:     order of operations!  So:

3.4 + 2.6 x 10 : 2 =

3.4 + 26 : 2 =

3.4 + 13 =

16.4