Cogito
Grade 2 Math · Chapter 7 · Lesson 1
Meet the Coins
Size does not tell you what a coin is worth.
10 problems · about 11 minutes · 2.MD.C.8
Figure — use these to answer the problems
How many coins
4
How much it is worth
41¢
Warm-Up Review
From earlier lessons. Loosen up before the new work.
3 problemsFrom “Equal Groups in Stories”
4 plates with 3 buns each. How many buns?
AnswerFrom “Filling a Rectangle With Squares”
2 rows of 5 squares. How many squares?
AnswerFrom “Writing the Equation”
3 rows of 4. What is the total?
Answer
Warm Up
Straightforward practice. Get the method working first.
3 problemsHow many cents is a dime worth?
AnswerDoes a bigger coin always mean more money?
- No. A dime is small and worth 10¢.
- Yes. Bigger is always more.
How many cents is a quarter worth?
Answer
Build It Up
The same ideas with more to keep track of.
1 problemHow many cents is a nickel worth?
Answer
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
3 problemsHow many pennies are worth the same as a nickel?
AnswerThe Piggy Bank
Which is worth more, a dime or a nickel?
- The dime. It is 10¢.
- The nickel. It is bigger.
Swapping
How many pennies are worth the same as one dime?
Answerpennies