Carlos has 38 toys in his toy box. His brother gives him 32 more toys. For his birthday, Carlos receives 20 more toys. Which shows one way to find the sum of his toys? A. $$ 30+30+20=80 $$, then $$ 80+(8+2+0) $$, then $$ 80-10= $$ B. $$ 30+30+20=80 $$, then $$ 80+(8+2+0) $$, then $$ 80+10= $$

Question

UpStudy AI · Accepted Answer

We start with the three amounts:
- Carlos has $$38$$ toys.
- His brother gives him $$32$$ toys.
- He receives $$20$$ toys for his birthday.

One way to add these is to break each number into tens and ones.

1. Write the numbers as:
   - $$38 = 30 + 8$$
   - $$32 = 30 + 2$$
   - $$20 = 20 + 0$$

2. Sum the tens:
   $$
   30 + 30 + 20 = 80
   $$

3. Sum the ones:
   $$
   8 + 2 + 0 = 10
   $$

4. Combine the sums:
   $$
   80 + 10 = 90
   $$

Comparing with the given choices:
- Option A shows $$80 - 10$$, which would be incorrect.
- Option B shows $$80 + 10$$, which matches our process.

Thus, the correct method is shown in option B.
One way to find the sum is to add the tens and ones separately: $$30 + 30 + 20 = 80$$ and $$8 + 2 + 0 = 10$$, then add them together: $$80 + 10 = 90$$. So, the correct choice is B.

Carlos has 38 toys in his toy box. His brother gives him 32 more toys. For his birthday, Carlos receives 20 more toys. Which shows one way to find the sum of his toys? A. \( 30+30+20=80 \), then \( 80+(8+2+0) \), then \( 80-10= \) B. \( 30+30+20=80 \), then \( 80+(8+2+0) \), then \( 80+10= \)

Solución de inteligencia artificial de Upstudy

Responder

Solución

Beyond the Answer

preguntas relacionadas

Latest Arithmetic Questions