Digits Represent Tens and Ones

What number is represented by these number discs?

• 33 245

• 32 246

• 43 248

• 32 245

What determines a digit's value?

• It's position or place in the number.

• The higher the digit, the greater the value; 9 is always more than 5

Round off 1379 to the nearest 10 is

• 1300

• 1370

• 1300

• 1380

How many ten and ones are in 48 + 35?

• 8 tens 8 ones

• 7 tens 2 ones

• 8 tens 3 ones

• 7 tens 5 ones

• 27
• 72
• 20

27

• 27

• 72

• 20

17 is ​ (a)   tens and ​ (b)   ones

• 1

• 7

• 10

• 70

33+19

• 12

• 42

• 52

45+26

• 11

• 71

• 61

Use your favorite strategy to find the sum of 34+23

• 58

• 67

• 57

• 76