Perkalian 1. (+2) × (+5) 2. (+3) × (-8) 3. (-4) × (+9) 4. (-6) × (-7)

Posted on 9 views

Baiklah untuk soal selanjut nya teman teman …

Perkalian dari:

1.     (+2) × (+5)

2.     (+3) × (-8)

3.     (-4) × (+9)

4.     (-6) × (-7)

5.     2 × (-6) × (+10)

6.     -3 × 8 × (-2)

7.     (-9)2

8.     -92

9.     (-4)3

10.  0,72

11.  (-3/5) × (+5/8)

12.  8 × (-1/4) × (-7)

Pembahasan jawaban:

1.     (+2) × (+5) = 2 × 5 = 10

2.     (+3) × (-8) = -(3 × 8) = -24

3.     (-4) × (+9) = -(4 × 9) = -36

4.     (-6) × (-7) = 6 × 7 = 42

5.     2 × (-6) × (+10) = -(2 × 6 × 10) = -120

6.     -3 × 8 × (-2) = 3 × 8 × 2 = 48

7.     (-9)2 = (-9) × (-9) = 9 × 9 = 81

8.     -92 = -(9 × 9) = -81

9.     (-4)3 = (-4) × (-4) × (-4) = -64

10.  0,72 = 0,7 × 0,7 = 0,49

11.  (-3/5) × (+5/8) = -(3/5 × 5/8) = -3/8

12.  8 × (-1/4) × (-7) = 8 × 1/4 × 7 = 14

**

Share ke teman yang lainya

Leave a Reply

Your email address will not be published. Required fields are marked *