Revision grade 2

66 is closer to ......

( by using 120 chart strategy)

• 67

• 60

• 70

24 is closer to .....

( by using 120 chart strategy )

• 20

• 25

• 30

16 is about ......

( by using place value strategy )

• 10

• 15

• 20

97 is about .....

( by using place value strategy)

• 100

• 98

• 95

• 90

Estimate the sum of 21 + 57

( by using 120 chart strategy )

.........

• 70

• 73

• 80

Estimate the sum of 19 + 27

( by using place value strategy)

• 30

• 40

• 50

• 46

The exact sum of 28 + 42

• 60

• 70

• 26

49 + 12

By using place value strategy The sum is 50

Is the estimation is acceptable?

• Yes , because the estimation is close to the exact sum

• No , because the estimation is not close to the exact sum

What's the time ?

Choose 2 correct answers

• Quarter past 4

• Quarter to 4

• 4 : 45

• 3 : 45

500 cm ......... 5 meters

• >

• <

• =