Quiz math

Soal

45 +45 + 7 + 8 + 90 + 90 – 7 – 8 + 77=?

89 + 7 =?

90 + 1 =?

9 + 3 =?

Jawaban:

1. 347

2. 96

3. 91

4. 12

Penjelasan dengan langkah-langkah:

45 +45 + 7 + 8 + 90 + 90 – 7 – 8 + 77

= 90 + 7 + 8 + 90 + 90 – 7 – 8 + 77

= 97 + 8 + 90 + 90 – 7 – 8 + 77

= 105 + 90 + 90 – 7 – 8 + 77

= 195 + 90 – 7 – 8 + 77

= 285 – 7 – 8 + 77

= 278 – 8 + 77

= 270 + 77

= 347

89 + 7

=96

90 + 1

= 91

9 +3

= 12

Jawaban:

45 + 45 + 7 + 8 + 90 + 90 – 7 – 8 + 77

= 90 + 15 + 180 – 15 + 77

= 105 + 180 – 15 + 77

= 105 + 165 + 77

= 270 + 77

= 347

89 + 7

=96

90 + 1

= 91

9 + 3

= 12