Adam buys a sticker for $6.
He also buys a bead.
The bead costs 2 times as much as the sticker.
- How much less does the bead cost than the sticker?
- How much does he spend altogether?
- How much are 3 beads?
- How much are 3 beads and 2 stickers?
(a)
Choose the cheaper item to be 1 u.
The bead costs 2 times as much as the sticker.
The sticker is cheaper.
Cost of the sticker = 1 u = $6
Cost of the bead = 2 u
Amount that the sticker costs less than the bead
= 2 u - 1 u
= 1 u
= 1 x 6
= $6
(b)
Total amount that Adam spends
= 1 u + 2 u
= 3 u
= 3 x 6
= $18
(c)
Cost of 3 beads
= 3 x 2 u
= 6 u
= 6 x 6
= $36
(d )
Cost of 3 beads and 2 stickers
= 3 x 2 u + 2 x 1 u
= 6 u + 2 u
= 8 u
= 8 x 6
= $48
Answer(s): (a) $6; (b) $18; (c) $36; (d) $48