Here are the step-by-step solutions for the three money word problems.
Problem 1
Nadira has two types of notes. First, let's find out how much she has in $10 notes. She has 5 of them, so we multiply:
$5 \times \$10 = \$50$
Next, let's find out how much she has in $5 notes. She has 7 of them, so we multiply:
$7 \times \$5 = \$35$
To find the total amount of money, we add the two amounts together:
$\$50 + \$35 = \$85$
Problem 2
Rosie starts with $\$28.90$. Her father gives her $\$45$ more. To find the total, we add these two numbers together. It helps to line up the decimal points or think of the dollars and cents separately.
Dollars: $28 + 45 = 73$
Cents: $.90 + .00 = .90$
So, $\$28.90 + \$45.00 = \$73.90$
Problem 3
Toby paid with $\$35$ and got back $\$7.50$ in change. The cost of the aquarium is the difference between what he gave and what he got back. We need to subtract the change from the amount paid.
Calculation: $\$35.00 - \$7.50$
Let's break it down:
If we subtract $\$7$ from $\$35$, we get $\$28$.
Now we still need to subtract the remaining $\$0.50$ (50 cents).
$\$28.00 - \$0.50 = \$27.50$
Final Answer:
1. $85
2. $73.90
3. $27.50
Parent Tip: Review the logic above to help your child master the concept of printable money word problems for 2nd grade.