Lampiran 12
INSTRUMEN PENELITIAN
Nama Sekolah: Nama Siswa :
Mata Pelajaran: Matematika No. Absen :
Hari/Tanggal : Kelas :
petunjuk
1. Periksa dan bacalah soal-soal terlebih dahulu sebelum anda mengerjakan.
2. Kerjakan soal sesuai perintah.
3. Tulislah proses dalam mengerjakan soal.
SOAL – SOAL :
1. Carilah hasil penjumlahan berikut !
a. ( 5 + 3 ) + ( -6 ) + (-1 ) c. -6 + (7 + 1 ) + (-2 ) b. ( -4 + 3 ) + ( -5 ) + 2 d. 10 + (-20 ) +0 + 4 2. Diberikan a = 4, b = -6, c = 7, d = 13, dan e = 15.
Hitunglah :
a. (a + b ) – (c + e) c. (b –a ) + c
b. ( a + e) – c d. (c – d) – a
3. Hitunglah perkalian tersebut !
a. [ 4 x (-3) ] x (-5 ) d. 4 x [ (-3) x (-5 )]
b. 2 x (3 + 4) e. (2 x 3 ) + ( 2 x 4 )
c. ( 2 x 12 )- (2 x 8 )
4. Salin dan lengkapilah table berikut !
A b c a + b (a + b )
+ c
a - b (a b)
-c
a + ( b +
c) 2 -5 4 2 + (-5) =
-3
(-3) + 4 =
1
2 – (-5) =
7
7 – 4 = 3 2 + (-1) =1
12
6 2 3
-8 -5 -1
-2 9 1
5. Salin dan lengkapilah bagan di samping !
Lampiran 13
KUNCI JAWABAN TES
1. a. (5 + 3) + (-6) + (-1)
= 8 – 7 ………. (3) = 1 ……….………(2) b. (-4 + 3) + (-5) + 2
=-1 -5 + 2 ………..……… (2) =-6 + 2 ……… ..………(2) = -4 ………(1) c. -6 + (7 + 1) + (-2)
= -6 + 8 – 2 ………..……….(2) Kurangin 2
Tambah -9 Tamb
ah 3
Kura ngin
4 5
…. .
…. . ….
=2-2 ………..………(2) = 0 ………(1) d. 10 + (-20) + 0 + 4
= - 10 + 4 ………(3) = -6 ………..(2)
20
2. Diberikan a = 4, b = -6, c = 7, d = 13, dan e = 15.
a. (a + b) - (c + e)
= (4 + (-6)) – (7 + 15) ………..…. (1)
= (-2) – 22 ……….(2)
= -24 ……….……(2)
b. (a + e) – c
= (4 + 15) – 7 ………..(1)
=19 – 7 ……….…………..(2)
= 12 ………(2)
c. (b - a) + c
=((-6) - 4) + 7 ……….…(1)
= - 10 + 7 ……….(2)
= -3 ………..(2)
= -6 – 4 ………..(2)
= - 10 ………..…(2)
20
3. a. [ 4 x (-3) ] x (-5 )
= -12 x -5 ………..…………(3)
= 60 ………..…………(2)
b. 2 x (3 + 4)
=6 + 8 ………(3)
=14 ……….………..(2)
c. ( 2 x 12 )- (2 x 8 )
=24 – 16 ………..(3)
= 8 ………..……(2)
d. 4 x [ (-3) x (-5 )]
= 4 x15 ……… ….(3)
= 60 ……….(2)
= 6 + 8 ………(3)
= 14 ……… ..(2)
25
4.
a b c a + b (a + b ) + c a - b (a - b) - c a + ( b + c) 2 -5 4 2 + (-5) =
-3
(-3) + 4 = 1 2 – (-5) =
7
7 – 4 = 3 2 + (-1) =1
4 7 -1 4 + 7 =11 11 + (-1)=10 4 -7 = -3 -3 – (-1)
=-2
4 + 6 = 10
3 -12 -5 3 + (-12)=
-9
-9 +(-5)= -14 3 –
(12)=15
15 –
(-5)=20
3 + (-17)=
-14 6 2 3 6 + 2 = 8 8 + 3 =11 6 – 2 = 4 4 – 3 = 1 6 + 5 =13 -8 -5 -1 -8 +
(-5)=-13
13 + (1)=
-14
-8 –
(-5)=-3
-3 – (-1)=
-2
-8 + (-6)=
-14 -2 9 1 -2 + 9 =7 7 + 1 = 8 -2 – 9 =
-11
-11 + 1 =
-12
-2 + 10 =8
5. . . . ………..………(3) ……….(5) ……….(5) ……….(5) ……….(5) ……….(5) Tambah -9 Tamb
ah 3 Kura
