
Avaldis - lihtsustatud
Presentation
•
Mathematics
•
5th Grade
•
Practice Problem
•
Easy
Mari-Liis Vähi
Used 7+ times
FREE Resource
6 Slides • 10 Questions
1
Arvavaldis
Tähtavaldis
2
Arvud koos neid ühendavate tehtemärkidega moodustavadki avaldise. Vahel tuleb avaldises kasutada ka sulgusid.
Arvaldised
26 + 5 · 12,
(36 + 14) · 3,
132 – (25 + 32)
Arvavaldis
3
Avaldisi, mis lisaks arvudele sisaldavad ka tähti, ja avaldisi, mis sisaldavad ainult tähti, nimetatakse tähtavaldisteks.
Tähtavaldised on näiteks avaldised
(28 + 42) · 5 + a,
8 · m + 100,
265 – 5 · x,
ax + b.
Tähtavaldis
4
Multiple Choice
Milline on arvavaldis?
2 + 27 : 3
a + 8
5
Multiple Choice
Milline on arvavaldis?
32 - a + 9
1000 ⋅ 10 - 900
6
Multiple Choice
Milline on arvavaldis?
3 ⋅ (17+3)
250a
7
Multiple Choice
Milline on TÄHTavaldis?
3 ⋅ (17+3)
250a
8
Multiple Choice
Milline on TÄHTavaldis?
3 ⋅ (17+x)
250-18
9
Multiple Choice
Milline on TÄHTavaldis?
2(t + 250) - 4
81 : 9 - 4
10
Arvavaldise väärtus
Arvuta a + 9 väärtus, kui a = 6
Asendan a avaldises 6-ga ja arvutan
a + 9 = 6 + 9 = 15
Some text here about the topic of discussion
11
Arvavaldise väärtus
Arvuta 3b + 7 väärtus, kui b = 2
Asendan b avaldises 2-ga ja arvutan
3b + 7 = 3 ⋅ 2 + 7 = 6 + 7 = 13
Some text here about the topic of discussion
12
Multiple Choice
Arvuta 3 ⋅ b, kui b = 2
3
6
9
13
Multiple Choice
Arvuta a + 16, kui a = 4
20
16
12
14
Multiple Choice
Vali õige
Lahuta arvude 360 ja 170 vahest arv y
(360 - 170) - y
(360 + 170) + y
(360 - y) + 170
15
3 + (9 - 7)
Liida arvule 3, arvude 9 ja 7 vahe
Avaldise kirjutamine
Some text here about the topic of discussion
Suurenda 3 korda a väärtust
3 ⋅ a
16
Multiple Choice
Vali õige
Vähenda arvu 21 kolm korda
21 - 3
21 : 3
21 + 3
Arvavaldis
Tähtavaldis
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