Kunci Jawaban Halaman 47-48 Matematika Kelas 7 SMP/MTs Kurikulum Merdeka: Hitunglah! Soal 1, 2, 3, 4

Kunci Jawaban

1. 12 : (-2)⊃2;
= 12 : 4
= 3

2. -3⊃2; + 10
= -9 + 10
= 1

3. 6 - (-4)⊃2;
= 6 - 16
= -10

4. (-6)⊃2; + (-7⊃2;)
= 36 + (-49)
= -13

Soal nomor 4: Hitunglah

1. 4 + 7 x (6 - 7)

2. 10 - (-8 + 5) x 6

3. (6 - 2⊃3;) x (-3)

4. (-4)⊃2; + 25 : (-5)⊃2;

5. 1/3 + (-2/3)⊃3;

6. 1/4 - 3/7 : 4/7

Kunci Jawaban:

1. 4 + 7 x (6 - 7)
= 4 + 7 x (-1)
= 4 + (-7)
= -3

2. 10 - (-8 + 5) x 6
= 10 - (-3) x 6
= 10 - (-18)
= 28

3. (6 - 2⊃3;) x (-3)
= (-2) x (-3)
= 6

4. (-4)⊃2; + 25 : (-5)⊃2;
= 16 + 25 : (-25)
= 16 + (-1)
= 15

5. 1/3 + (-2/3)⊃3;
= 1/3 + 4/9
= 3/9 + 4/9
= 7/9

6. 1/4 - 3/7 : 4/7
= 1/4 - 3/4
= -2/4
= 1/2