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Estimating and Rounding quiz

Estimating and Rounding quiz

Estimating & Rounding QUIZ
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Slide 1: Tekstslide
MathematicsPrimary Education

In deze les zitten 19 slides, met interactieve quizzen en tekstslides.

Onderdelen in deze les

Estimating & Rounding QUIZ

Slide 1 - Tekstslide

Round this number to the nearest 10
76
A
75
B
70
C
80
D
66

Slide 2 - Quizvraag

Round this number to the nearest 10
83
A
80
B
83
C
90
D
88

Slide 3 - Quizvraag

Estimate this number to the nearest 100
567

A
456
B
600
C
500
D
700

Slide 4 - Quizvraag

Slide 5 - Tekstslide

Round 235 to the nearest ten.
A
200
B
345
C
240
D
340

Slide 6 - Quizvraag

Round this number to the nearest 10
666
A
345
B
670
C
660
D
680

Slide 7 - Quizvraag

What is Rounding?
 
  • When a question asks you to round or estimate, you are being asked "about how many?"

  • Your approximate number will help you solve problems that maybe hard to solve.

Slide 8 - Tekstslide

What to do?
  •  When rounding to the nearest ten up to 100. Your answer will be one of the numbers below because they are multiples ten.

  • 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.
  • The rule to rounding 0, 1, 2, 3, 4 round down.
      5, 6, 7, 9, 9 round up.

Slide 9 - Tekstslide

Rounding poem
Remembering this poem with the rule will also help you round.

  • Find your number.
  • Look right next door.
  • 4 or less just ignore.
  • 5 or more, add 1 more.

Slide 10 - Tekstslide

Using a number line
Remember the poem.
Round 36 to the nearest ten.
Put the circle around that number.
31
32
33
34
35
36
37
38
39
30
40

Slide 11 - Sleepvraag

Using a number line
Round 74 to the nearest ten.
Put the circle around that number.
71
72
73
74
75
76
77
78
79
70
80
71
72
73
74
75
76
77
78
79
70

Slide 12 - Sleepvraag

Your turn to try!

Slide 13 - Tekstslide


Round 5 to the nearest ten.
1
2
3
4
5
6
7
8
9
0
10
A
0
B
10
C
6
D
20

Slide 14 - Quizvraag


Round 19 to the nearest ten.
11
12
13
14
15
16
17
18
19
10
20
A
20
B
10
C
19
D
11

Slide 15 - Quizvraag


Round 73 to the nearest ten.
71
72
73
74
75
76
77
78
79
70
80
A
70
B
75
C
80
D
85

Slide 16 - Quizvraag


Round 77 to the nearest ten.
71
72
73
74
75
76
77
78
79
70
80
A
70
B
75
C
80
D
85

Slide 17 - Quizvraag


Round 92 to the nearest ten.
91
92
93
94
95
96
97
98
99
90
100
A
90
B
95
C
97
D
100

Slide 18 - Quizvraag

Keep the poem in mind
The rule to rounding 0, 1, 2, 3, 4 round down.
5, 6, 7, 9, 9 round up.

  • Find your number.
  • Look right next door.
  • 4 or less just ignore.
  • 5 or more, add 1 more.

Slide 19 - Tekstslide