G1 Double digit addition Lesson.

Double Digit Addition

when you want to add or subtract 2-digit number always start with the ones digits

REmember

Multiple Choice

55+11=

• 66

• 44

• 55

• 77

Multiple Choice

27+51=

• 78

• 87

• 71

Multiple Choice

22+14=

• 36

• 33

• 92

Multiple Choice

20+20=

• 20

• 4

• 44

• 40

Multiple Choice

32+35=

• 67

• 56

• 76

• 65

Multiple Choice

52+34=

• 86

• 88

• 68

• 66

Multiple Choice

46+32=

• 87

• 77

• 88

• 78

Multiple Choice

True or False: It is important to keep the ones in the one's column and the tens in the ten's column when adding or subtracting?

• True

• False

Multiple Choice

Solve

22 + 23 =

• 54

• 45

• 46

• 64

​Double-Digit Numbers Double-digit numbers are numbers that are made up of two numbers (or have two digits), with a number in the one's place and a number in the tens place. On a number line, double-digit numbers would fall between 10 and 99. Some examples of double-digit numbers include: -

13 (1 in the tens place and 3 in the one's place) - 47 (4 in the tens place and 7 in the one's place) - 92 (9 in the tens place and 2 in the one's place) - 65 (6 in the tens place and 5 in the one's place) - 29 (2 in the tens place and 9 in the one's place)

​https://youtu.be/xAf-rCJ6VEc

​https://youtu.be/xAf-rCJ6VEc