Page 165 - NUMINO TG_3A
P. 165
Activity 1 Multiplication without Regrouping
jOb ective Learn how to multiply a 2-digit number by a 1-digit number.
1. Textbook Instructions Activity 1 Multiplication without Regrouping
Explain how to multiply a 2-digit number by a 1 . Fill in the blanks to solve the problem.
1-digit number without regrouping.
a. There are 4 plates with 12 12
1. Have students solve real life problems to 12 biscuits each on 12 4
understand the relationship between repeated Jessica’s table. 12
addition and multiplication. How many biscuits are + 12 48
Have them remember that they can use a on Jessica’s table?
simple multiplication sentence to express 48
addition of two or more of the same number.
b. There are 3 rows with
13 cars each in a parking 13 13
lot. How many cars are in 13 3
the parking lot? + 13
39
39
c. There are 4 boxes with 21 21
21 erasers each. 21 4
How many erasers are 21
there in all? + 21 84
84
92
2. Build Understanding
For students who are having difficulty solving problem 1, draw a picture to guide them.
Example: 1a.
Draw a picture related to the word problem.
You can draw the picture on the right to show twelve biscuits in each of
the four plates.
Write an addition sentence.
12 12 12 12 48.
Group the biscuits. Then, write the multiplication sentence.
4 groups of 12.
4 12 48.
147 NUMINO Teacher s Guide
jOb ective Learn how to multiply a 2-digit number by a 1-digit number.
1. Textbook Instructions Activity 1 Multiplication without Regrouping
Explain how to multiply a 2-digit number by a 1 . Fill in the blanks to solve the problem.
1-digit number without regrouping.
a. There are 4 plates with 12 12
1. Have students solve real life problems to 12 biscuits each on 12 4
understand the relationship between repeated Jessica’s table. 12
addition and multiplication. How many biscuits are + 12 48
Have them remember that they can use a on Jessica’s table?
simple multiplication sentence to express 48
addition of two or more of the same number.
b. There are 3 rows with
13 cars each in a parking 13 13
lot. How many cars are in 13 3
the parking lot? + 13
39
39
c. There are 4 boxes with 21 21
21 erasers each. 21 4
How many erasers are 21
there in all? + 21 84
84
92
2. Build Understanding
For students who are having difficulty solving problem 1, draw a picture to guide them.
Example: 1a.
Draw a picture related to the word problem.
You can draw the picture on the right to show twelve biscuits in each of
the four plates.
Write an addition sentence.
12 12 12 12 48.
Group the biscuits. Then, write the multiplication sentence.
4 groups of 12.
4 12 48.
147 NUMINO Teacher s Guide
