Page 152 - NUMINO Challenge_K2
P. 152
p.70 Split into 3 Numbers Problem solving p.71
Type Study The number tree is completed by splitting the numbers from 1 How many marbles are being held in the right hand?
top to bottom. Fill in the missing numbers.
6 marbles
4
12 Tip
Think about how 9
3 4 can be split into 3
14 22 and the other number.
2 Find the numbers that fit in each bubble by splitting numbers.
5 5
12 22
2 11
Importance of Splitting and Gathering Tip
Start by splitting the
Splitting and gathering is the foundation for the mathematical operations: adding, subtracting, multiplying, number at the top.
dividing, and making fractions. Splitting is directly related to subtraction, but splitting into equal numbers is
important in understanding the concepts of division and fractions. In a similar way, gathering is directly related 71Operations
to addition, but is also the basics for multiplication. Fingers, rocks, cards, and other objects will be used in
activities for practicing splitting and gathering. Use marbles or candies in a guessing
game to have students guess the number
70 NUMINO Challenge K2 held in the hand.
If students are having difficulty in splitting,
guide the students to draw and count
circles so that they can split numbers.
p.72 Gather 3 Numbers Problem solving p.73
Type Study Fill in the missing numbers by gathering 3 numbers, two 1 Complete the number pyramid that gathers two numbers,
times.
multiple times.
13
5 9 68
4 33 53
23 24 Tip
6
Gather the two
numbers below to write
the number above.
2 Gather numbers to fill in the blanks. 11 2
1 11
4
Split and Gather Game 73Operations
Playing mathematical games will help students perceive math as being fun and provide an effective
method of practicing math concepts. The following is a game that will familiarize students with splitting
and gathering.
Finger Game
Player 1 says a number from 1 to 9 and holds up that number of fingers. Player 2 finds the number that
makes player 1's number 10, when gathered, and holds up that number of fingers.
Number Card Game
Mix and lay out the numbers from 1 to 9. Two players will each pick a number and place the card next
to their ear so that only the other player can see the card. The referee will call out what number is made
when the two players’ numbers are gathered. The first person who guess their number correctly wins.
72 NUMINO Challenge K2
Students must gather numbers according to the given conditions. Do not have them just
solve problems. Rather, have them gather various numbers on their own. Another good
method is to have them erase some numbers from the problem to find the right answer.
23Answer Key
Type Study The number tree is completed by splitting the numbers from 1 How many marbles are being held in the right hand?
top to bottom. Fill in the missing numbers.
6 marbles
4
12 Tip
Think about how 9
3 4 can be split into 3
14 22 and the other number.
2 Find the numbers that fit in each bubble by splitting numbers.
5 5
12 22
2 11
Importance of Splitting and Gathering Tip
Start by splitting the
Splitting and gathering is the foundation for the mathematical operations: adding, subtracting, multiplying, number at the top.
dividing, and making fractions. Splitting is directly related to subtraction, but splitting into equal numbers is
important in understanding the concepts of division and fractions. In a similar way, gathering is directly related 71Operations
to addition, but is also the basics for multiplication. Fingers, rocks, cards, and other objects will be used in
activities for practicing splitting and gathering. Use marbles or candies in a guessing
game to have students guess the number
70 NUMINO Challenge K2 held in the hand.
If students are having difficulty in splitting,
guide the students to draw and count
circles so that they can split numbers.
p.72 Gather 3 Numbers Problem solving p.73
Type Study Fill in the missing numbers by gathering 3 numbers, two 1 Complete the number pyramid that gathers two numbers,
times.
multiple times.
13
5 9 68
4 33 53
23 24 Tip
6
Gather the two
numbers below to write
the number above.
2 Gather numbers to fill in the blanks. 11 2
1 11
4
Split and Gather Game 73Operations
Playing mathematical games will help students perceive math as being fun and provide an effective
method of practicing math concepts. The following is a game that will familiarize students with splitting
and gathering.
Finger Game
Player 1 says a number from 1 to 9 and holds up that number of fingers. Player 2 finds the number that
makes player 1's number 10, when gathered, and holds up that number of fingers.
Number Card Game
Mix and lay out the numbers from 1 to 9. Two players will each pick a number and place the card next
to their ear so that only the other player can see the card. The referee will call out what number is made
when the two players’ numbers are gathered. The first person who guess their number correctly wins.
72 NUMINO Challenge K2
Students must gather numbers according to the given conditions. Do not have them just
solve problems. Rather, have them gather various numbers on their own. Another good
method is to have them erase some numbers from the problem to find the right answer.
23Answer Key
