All the solutions provided in **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 7 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Chapter 7 Review Answer Key

**Vocabulary Check**

**Complete each sentence.**

bar graph

picture graph

data

survey

Question 1.

A ________________ shows data using bars.

Answer:

Bar graph shows data using bars.

Question 2.

A ________________ shows data using pictures.

Answer:

Picture graph shows data using pictures.

Question 3.

Another word for information is ________________.

Answer:

Another word for information is data.

Question 4.

You can collect data by taking a ______________.

Answer:

You can collect data by taking a survey.

**Concept Check**

**Write the totals. Use the chart to answer the question.**

Question 5.

Do more people like skipping or running?

Answer:

Explanation:

I counted wrote the totals for the given tally marks.

Question 6.

Write the totals in the tally chart.

Answer:

Explanation:

I counted wrote the totals for the given tally marks.

Question 7.

Use the tally chart in Exercise 6 to make a bar graph. Use the graphs above to answer the questions.

Answer:

Question 8.

How many people chose dolphins?

Answer:

6

Explanation:

6 people chose dolphins.

Question 9.

What sea animal got fewer than 5 votes?

Answer:

Whales

Explanation:

2 people chose whales

2 < 5

So, whales got fewer votes than 5 votes.

Question 10.

How many people chose sharks and whales?

Answer:

2 people chose whales

9 people chose sharks

Add to find

2 + 9 = 11

So, 11 people chose sharks and whales.

Question 11.

How many students were surveyed?

Answer:

15 students

Explanation:

2 students chose whales

6 students chose dolphins

9 students chose sharks

Add to find the total

2 + 6 + 7 = 15

So, 15 people were surveyed in all.

**Problem Solving**

**Complete the tally chart.**

Question 12.

Adam asked his friends about their favorite subjects.

Answer:

Explanation:

I counted wrote the totals for the given tally marks.

**Test Practice**

Question 13.

Gemma counts how many glasses of water each person drinks in one day. How many glasses does her dad drink?

(A) 0

(B) 3

(C) 4

(D) 8

Answer:

(C) 4

Explanation:

Gemma counts how many glasses of water each person drinks in one day

Her dad drinks 4 glasses in one day.

**Reflect**

**Use the data to make each graph.**

Answer:

Explanation:

I counted and wrote the number of tally marks

I colored the bars to represent the data in the form of a bar graph.