Comparison Number Stories
2-Step Number Stories
Data and Graphs
Measurements
Partial Sums Algorithm
100
Use the quantity-quantity difference diagram to solve the number story below.
Matias has 18 soccer balls. Francisco has 5 more balls than Matias. How many soccer balls does Francisco have?
Francisco has 23 soccer balls.
100
On Monday, the class plant measured 5 inches tall. On Tuesday, it grew 3 more inches. On Wednesday, one boy cut off 4 inches from the top of the plant. How many inches tall is the plant now?
The plant is 4 inches tall.
100
Look at the tally chart to answer the question.
How many students walk to school?
13 students walk to school.
100
What is the name of this measurement tool?
Ruler
100
Look at the image below. Then, write it shows the steps of the partial sums algorithm correctly. Explain why.
It is correct because it shows how to add first by place value (hundreds, tens and ones) and then add the partial sums together to get the final answer.
200
Use the quantity-quantity difference diagram to solve the number story below.
Nancy is 3 years older than Jessica. Jessica is 7 years old. How old is Nancy?
Nancy is 10 years old.
200
On the first day of the caminata, 16 students participated in the hike. On the second day, 11 more students joined them to hike. On the third day, 2 girls got sick and did not hike. How many students hiked on the third day?
25 students hiked on the third day.
200
Look at the tally chart to answer the question.
How many more students walk to school than go by car?
9 more students walk to school than go by car.
200
Take a ruler. Measure the length of the Math Journal in inches. About how many inches long is it?
Answers vary.
200
Use the partial sums algorithm to solve the addition fact below.
Solve ALL of the steps.
78
+ 21
99
300
Use the quantity-quantity difference diagram to solve the number story below.
Sara brings 11 candy bars to school. During lunch, she gives away 8 candy bars to her friends. How many candy bars does Sara have left?
Sara has 3 candy bars left.
300
Nicolas brings 28 Pokemon cards to school. He gives 5 cards to Esteban. In return, Esteban gives Nicolas 8 cards. How many Pokemon cards does Nicolas have now?
Nicolas has 31 Pokemon cards now.
300
Nathalie asked 1A students to tell about their favorite pets. She collected their data and created a bar graph to show the results. Use the bar graph to answer some questions.
Which type of pet was most popular for 1A students?
Cats were the most popular pet in 1A.
300
Take a ruler. Measure the length of your pencil. How many centimeters long is it?
Answers vary.
300
Use the partial sums algorithm to solve the addition fact below.
Solve ALL of the steps.
54
+ 39
93
400
Use the quantity-quantity difference diagram to solve the number story below.
Bibiana has a birthday party. She receives 23 presents from her friends. Later, Bibiana gives 7 of her presents to her older sister. How many presents does Bibiana have remaining?
Bibiana has 16 presents remaining.
400
Nicolas likes to score goals when he plays soccer. On Monday, he scores 19 goals. On Tuesday, he scores 6 more. On Wednesday, he scores another 8 goals. How many goals does Nicolas score in total?
Nicolas scores 33 goals in total.
400
Nathalie asked 1A students to tell about their favorite pets. She collected their data and created a bar graph to show the results. Use the bar graph to answer some questions.
How many more students liked dogs more than fish?
6 more students liked dogs more than fish.
400
What is the difference between inches and centimeters?
Inches have more space between them. Centimeters are closer. Therefore, when you measure in centimeters the number of centimeters will always be greater than the number of inches.
400
Why do we learn the partial sums algorithm?
We learn it so that we can accurately add 2- and 3-digit numbers that are not simple to add mentally.
500
Use the quantity-quantity difference diagram to solve the number story below.
Santiago has 27 books left.
500
There are 253 students in primary. 18 more students enter the school. At the end of the year, 4 students leave. How many students are there in primary now?
There are 267 students in primary now.
500
How many students come to school by car?
16 students come to school by car.
500
Which tool would you use to measure the distance around the head, a ruler or a tape measure? Why?
A tape measure because it is flexible so it can go around someone's head.
500
Use the partial sums algorithm to add the addition fact below. Show ALL the steps.
789
+ 536
1,325