Keterangan soal:
– Tingkatan = Level 3 Bilangan 20 sampai 50
– File download dan soal online = Tersedia
Tentukan bilangan n pada soal-soal berikut dengan cermat dan teliti!
1) 23 + 35 – n = 31
a. 28
b. 27
c. 26
d. 25
2) 31 + n – 28 = 29
a. 29
b. 25
c. 26
d. 27
3) n – 26 + 32 = 28
a. 33
b. 31
c. 24
d. 22
4) 42 – 25 + n = 53
a. 45
b. 44
c. 36
d. 33
5) 47 + n – 29 = 58
a. 40
b. 45
c. 43
d. 41
6) 6 x n + 45 = 177
a. 33
b. 22
c. 44
d. 11
7) 4 x n – 36 = 72
a. 29
b. 26
c. 28
d. 27
8) 38 x 8 + n = 345
a. 51
b. 31
c. 21
d. 41
9) 28 x 9 – n = 209
a. 43
b. 44
c. 45
d. 46
10) 27 + 11 x n = 379
a. 44
b. 28
c. 32
d. 46
11) 48 – 2 x n = 6
a. 23
b. 21
c. 24
d. 22
12) 36 : n + 37 = 41
a. 9
b. 8
c. 7
d. 6
13) 50 : n – 23 = 2
a. 2
b. 5
c. 4
d. 10
14) 29 + 42 : n = 36
a. 7
b. 2
c. 3
d. 6
15) 38 – 45 : n = 35
a. 15
b. 9
c. 25
d. 5
16) 33 : 11 + n = 49
a. 52
b. 54
c. 46
d. 48
17) 48 : 2 – n = 3
a. 22
b. 21
c. 20
d. 23
18) 12 x n + 47 – 30 = 317
a. 30
b. 35
c. 25
d. 20
19) n x 13 – 28 + 34 = 474
a. 48
b. 46
c. 38
d. 36
20) 43 + 24 – 39 : n = 64
a. 23
b. 16
c. 13
d. 26
21) 33 + 45 : n – 26 = 16
a. 5
b. 9
c. 10
d. 15
22) 28 + 14 x 21 – n = 273
a. 59
b. 29
c. 49
d. 39
23) 39 – 48 : 12 + n = 79
a. 22
b. 44
c. 33
d. 55
24) 15 x 31 + 49 : 7 – n = 433
a. 39
b. 41
c. 43
d. 38
25) n + 26 x 12 : 13 – 22 = 40
a. 42
b. 38
c. 37
d. 44
KUNCI JAWABAN
SOAL MENCARI BILANGAN TERSEMBUNYI DALAM OPERASI CAMPURAN LEVEL 3
BILANGAN 20 SAMPAI 50
1)
1) b. 27
23 + 35 – n = 31
58 – n = 31
n = 58 – 31
n = 27
2) c. 26
31 + n – 28 = 29
3 + n = 29
n = 29 – 3
n = 26
3) d. 22
n – 26 + 32 = 28
n + 6 = 28
n = 28 – 6
n = 22
4) c. 36
42 – 25 + n = 53
17 + n = 53
n = 53 – 17
n = 36
5) a. 40
47 + n – 29 = 58
18 + n = 58
n = 58 – 18
n = 40
6) b. 22
6 x n + 45 = 177
6 x n = 177 – 45
6 x n = 132
n = 132 : 6
n = 22
7) d. 27
4 x n – 36 = 72
4 x n = 72 + 36
4 x n = 108
n = 108 : 4
n = 27
8) d. 41
38 x 8 + n = 345
304 + n = 345
n = 345 – 304
n = 41
9) a. 43
28 x 9 – n = 209
252 – n = 209
n = 252 – 209
n = 43
10) c. 32
27 + 11 x n = 379
11 x n = 379 – 27
11 x n = 352
n = 352 : 11
n = 32
11) b. 21
48 – 2 x n = 6
2 x n = 48 – 6
2 x n = 42
n = 42 : 2
n = 21
12) a. 9
36 : n + 37 = 41
36 : n = 41 – 37
36 : n = 4
n = 36 : 4
n = 9
13) a. 2
50 : n – 23 = 2
50 : n = 2 + 23
50 : n = 25
n = 50 : 25
n = 2
14) d. 6
29 + 42 : n = 36
42 : n = 36 – 29
42 : n = 7
n = 42 : 7
n = 6
15) a. 15
38 – 45 : n = 35
45 : n = 38 – 35
45 : n = 3
n = 45 : 3
n = 15
16) c. 46
33 : 11 + n = 49
3 + n = 49
n = 49 – 3
n = 46
17) b. 21
48 : 2 – n = 3
24 – n = 3
n = 24 – 3
n = 21
18) c. 25
12 x n + 47 – 30 = 317
12 x n + 17 = 317
12 x n = 317 – 17
12 x n = 300
n = 300 : 12
n = 25
19) d. 36
n x 13 – 28 + 34 = 474
n x 13 + 6 = 474
n x 13 = 474 – 6
n x 13 = 468
n = 468 : 13
n = 36
20) c. 13
43 + 24 – 39 : n = 64
67 – 39 : n = 64
39 : n = 67 – 64
39 : n = 3
n = 39 : 3
n = 13
21) a. 5
33 + 45 : n – 26 = 16
7 + 45 : n = 16
45 : n = 16 – 7
45 : n = 9
n = 45 : 9
n = 5
22) c. 49
28 + 14 x 21 – n = 273
28 + 294 – n = 273
322 – n = 273
n = 322 – 273
n = 49
23) b. 44
39 – 48 : 12 + n = 79
39 – 4 + n = 79
35 + n = 79
n = 79 – 35
n = 44
24) a. 39
15 x 31 + 49 : 7 – n = 433
465 + 49 : 7 – n = 433
465 + 7 – n = 433
472 – n = 433
n = 472 – 433
n = 39
25) b. 38
n + 26 x 12 : 13 – 22 = 40
n + 312 : 13 – 22 = 40
n + 24 – 22 = 40
n + 2 = 40
n = 40 – 2
n = 38
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