1

Ask Questions To Understand

2

LET'S SUM THE NUMBERS

3

IS ONE OF THE ADDITIONS HIDDEN

4

LET'S SOLVE A PROBLEM

5

6

TERMS OF ADDITION

7

8

9

MAKE THE QUESTION TALK

10

IF EQUATIONS LIVED IN YOUR NEIGHBORHOOD

11

THE FRIENDSHIP OF ADDITION AND SUBTRACTION

12

SUBTRACTION EQUATION

13

TERMS OF SUBTRACTION

14

LET'S FIND THE DIFFERENCE

15

LET'S FIND THE DIFFERENCE 2

16

17

THE APPLE THAT FELL ON NEWTON'S HEAD

18

MULTIPLICATION EQUATION

19

Friendship of Multiplication and Addition

20

MULTIPLICATION EQUATION 2

21

THE ABILITY TO CHANGE

22

ADDITION TRICKS MULTIPLICATION

23

DIVISION EQUATION

24

DIVISION EQUATION 2

25

THE FRIENDSHIP OF DIVISION AND MULTIPLICATION