Singapore Math® Intensive Practice 3A
Topic 5 · Money
Dollars and cents as place value + applications — strengthens Shanghai problem-solving habits.
Lesson alignment
How this Singapore practice topic reinforces Shanghai Maths ideas and maps to Common Core / Eureka — the same note structure as One Lesson One Exercise.
Companion book: Shanghai Maths — One Lesson One Exercise, Grade 3 (ECNU Press English).
Learning objectives
- 1Read prices in dollars and cents and separate dollar / cent parts.
- 2Find the value of mixed notes and coins in a purse.
- 3Write amounts in figures and in words.
- 4Compose amounts with given coin types; ± / × money in context.
- 5Solve shopping word problems (change, totals, comparisons).
Common Core standards
| Code | Focus |
|---|---|
| 2.MD.C.8 | Money word problems (dollars / cents) |
| 4.MD.A.2 | Money as measurement / decimal notation (stretch) |
| 3.NBT.A.2 | Fluency supporting money ± |
| 3.OA.D.8 | Multi-step money stories |
Eureka Math correspondence
| Focus | Eureka |
|---|---|
| Dollars and cents | G2 M7 · G4 M6 decimals bridge |
| Purse totals / shopping | G2 M7 · G3 M2 fluency |
| Word problems | G3 M1 / M2 / M3 problem solving |
Shanghai Maths correspondence
Practice here to deepen the same ideas you teach from Shanghai Maths.
| Singapore practice | Shanghai Maths idea | Where in Hua's Classroom |
|---|---|---|
| Separate dollars / cents | Place-value decomposition | S1 · 1.1 habits |
| Purse / shopping totals | Column ± alignment | S1 · 1.2 · applications |
| Multi-step money stories | Shanghai-style applications | S1 · Unit Tests apps |
| Coin composition | Flexible grouping | S1 · 1.1 packing language |
Core concepts
Shanghai note: Grade 3 One Lesson One Exercise does not isolate a Money chapter the same way. Treat this topic as place-value + application fluency that strengthens Chapters 1–2 and 4.
Dollars and cents
$$\$19.05 = 19 \text{ dollars} + 05 \text{ cents}$$
100 cents = 1 dollar.
Writing in words / figures
| Figures | Words |
|---|---|
| $\$20.09$ | twenty dollars and nine cents |
| $\$0.91$ | zero dollars and ninety-one cents |
Alignment habit: Line up decimal points (or think in cents) before adding or subtracting.
Key terms
Dollar, cent, decimal point, note, coin, change, total, amount in figures / in words.