1.2.2 Nombor Bulat, Praktis Berformat PT3


Soalan 6:
Hitung 4 (8 + 14)(37 – 18) + 46

Penyelesaian:
4 (8 + 14)(37 – 18) + 46
= 4(22)(19) + 46
= 4 × 22 × 19 + 46
= 1672 + 46
= 1718


Soalan 7:
Hitung nilai bagi
113 + 6(47 – 4 × 9)

Penyelesaian:
113 + 6(47 – 4 × 9)
= 113 + 6[47 – (4 × 9)]
= 113 + 6(47 – 36)
= 113 + 6(11)
= 113 + 66
= 179


Soalan 8:
Hitung 128 + (9 × 4) – 318 ÷ 6

Penyelesaian:
128 + (9 × 4) – 318 ÷ 6
= 128 + 36 – 53
= 164 – 53
= 111


Soalan 9:
Hitung nilai bagi
62 × 15 – 40 + 68 ÷ 17.

Penyelesaian:
(62 × 15) – 40 + (68 ÷ 17)
= 930 – 40 + 4
= 894


Soalan 10:
402 – ( ) = 78 – 6 × 8 ÷ 16.
Cari nombor yang tertinggal dalam kotak.

Penyelesaian:
402 – ( ) = 78 – 6 × 8 ÷ 16
402 – ( ) = 78 – 48 ÷ 16
402 – ( ) = 78 – 3
402 – ( ) = 75
( ) = 402 – 75
( ) = 327

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