CIE 3- Maths - 9.2+ 9.3

Regroup each number by exchanging 1 hundred for 10 tens.

452 = .................

• = 300 + 150 + 2

• = 200 + 150 + 2

• = 300 + 250 + 2

Regroup each number by exchanging 1 hundred for 10 tens.

763 = .................

• = 700 + 160 + 36

• = 700 + 160 + 3

• = 600 + 160 + 3

Regroup each number by exchanging 1 hundred for 10 tens.

309 = .................

• =300 + 100 + 9

• = 100 + 100 + 9

• = 200 + 100 + 9

Estimate this subtraction (Tips: Rounding to the nearest 10)

148- 60

• Estimate: 150 – 60 = 90

• Estimate: 140 – 60 = 80

Estimate this subtraction (Tips: Rounding to the nearest 10)

245 - 82

• Estimate: 240 – 80 = 160

• Estimate: 250 – 80 = 170

Solve this subtraction

326 - 71 =

Solve this subtraction

534 - 93 =

Jamie has 5 packages with the same number of gel pens in each package. She has 25 gel pens in all. How many gel pens are in each package?

• 5

• 125

• 30

Garrett had 115 green apples and 83 red apples. On Monday he sold 72 apples. How many apples did Garrett have left?

• 43 apples
• 126 apples
• 270 apples

35 + ............ = 100