Riordan received $40.90 as allowance each week. This week, he saved $19.20 and spent the rest.
- How much did he spend this week?
- If he saved $9.50 more last week than this week, how much did he save last week?
(a)
Amount that Riordan spent
= 40.90 - 19.20
= $21.70
(b)
Amount that Riordan saved last week
= 19.20 + 9.50
= $28.70
Answer(s): (a) $21.70; (b) $28.70