Page 176 - NUMINO TB_3B

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NUMINO

Challenge P. 40~41 Activity 1 P. 44~45

1 . Divide the number in the first cart with the 1 . The figures have the same area.

number at the head of the train. Write the 2 half square units equal 1 square unit, so
quotient on the next cart and the remainder in each of the figures is 2 square units.
the smoke.
Divide the new number with the number at the 2. a. 6 b. 6 c. 6
head of the train until the quotient cannot be
divided anymore. 3. b. 6 c. 8

2 . 2, 2, 2 4.

26, 8, 2

1, 1, 1
57, 8, 1

2, 0, 1, 1
66, 22, 7, 2

Third train is the longest train.

Unit 21. Division Story Activity 2 P. 46~47
1 . 1, 2, 4 15

9,

P. 42~43

2 . Sample Answers

4 square units 11 14
14 15
Figures have the same area. They can be divided
into smaller units to compare areas. Answers 165
Divide the figures into square units and compare
the areas.
Each figure has an area of 6 square units.

The figures have the same area. They can be
compared by seeing that the 4 smaller squares on
the left is the same as 1 of the medium squares
on the right.
Square units must be in equal size.