Tolong bantu saya untuk menjawab soal matematika dengan menggunakan cara!!!

1.
9 × 123
= 9 × (100 + 20 + 3)
= (9 × 100) + (9 × 20) + (9 × 3)
= 900 + 180 + 27
= 1107

2.
87 × 4
= (80 + 7) × 4
= (80 × 4) + (7 × 4)
= 320 + 28
= 348

3.
6 × 56
= 6 × (60 - 4)
= (6 × 60) - (6 × 4)
= 360 - 24
= 336

4.
(32 × 2) + (18 × 2)
= (32 + 18) × 2
= 50 × 2
= 100

5.
(4 × 29) + (4 × 31)
= 4 × (29 + 31)
= 4 × 60
= 240