Term 2 focus topics for home learning:

Finding 10 or 100 more or less

Links

 - https://www.bbc.co.uk/bitesize/articles/zw267yc
 - https://vimeo.com/729118432 
 - https://www.thenational.academy/teachers/programmes/maths-primary-ks2/units/bridging-100-counting-on-and-back-in-10s-adding-subtracting-multiples-of-10/lessons/find-10-more-or-10-less-than-a-given-number 

Games

 1. Roll the Dice Challenge 

You will need: Two dice and some paper.

How to play:

 1. Roll two dice to make a two-digit number. For example, roll a 3 and a 6 to make 36.
 2. Ask your child to find 10 more (46).
 3. Next, ask them to find 10 less (26).
 4. For an extra challenge, use a three-digit starting number and ask for 100 more or 100 less.

Ask your child: “What changes when we add or subtract 10? What stays the same?”

 2. Number Card Challenge 

You will need: Scraps of paper and a pencil.

How to play:

 1. Write the digits 0–9 on separate pieces of paper.
 2. Pick two or three digits and arrange them to make a number.
 3. Ask your child to say the number that is 10 more, 10 less, 100 more or 100 less.
 4. Swap roles and let your child challenge you!

Make it trickier: Can they make a number where adding 10 crosses a hundred boundary, such as 196 + 10?

 3. The More or Less Race 

You will need: Paper, a pencil and a dice.

How to play:

 1. Write a starting number at the top of the paper, such as 145.
 2. Take turns choosing whether to find 10 more, 10 less, 100 more or 100 less.
 3. Each player works out the answer and writes it down.
 4. Get one point for each correct answer. The first to five points wins!

Example: Start at 145. A player chooses 100 more. The answer is 245.

 4. Number Spotters 

You will need: Just your eyes!

How to play:

 1. Look for numbers on house doors, signs, books, receipts or food packets.
 2. Choose a number and challenge your child to find 10 more or 10 less.
 3. For three-digit numbers, try 100 more or 100 less.
 4. Take turns being the question master.

Example: “I can see the number 327. What is 10 less? What about 100 more?”

 

Subtract two numbers across a 10 or 100

Links

 - https://vimeo.com/731052793
 - https://vimeo.com/731053730 

Games

1. Roll and Subtract 

You will need: Two dice and some paper.

How to play:

 1. Roll the dice to make a two-digit number. For example, roll a 3 and a 2 to make 32.
 2. Roll again to make the number to subtract, such as 7.
 3. Work out 32-7=25.
 4. Take turns and score a point for every correct answer.

Make it trickier: Use a three-digit starting number, such as 143-8 or 352-7.

2. Subtraction Snap! 

You will need: Scraps of paper with numbers written on them.

How to play:

 1. Make number cards using numbers such as 21, 32, 43, 51, 62 and 74.
 2. Make a second pile of subtraction cards with numbers such as 4, 6, 7, 8 and 9.
 3. Turn over one card from each pile and subtract the smaller number from the larger number.
 4. The first player to say the correct answer wins the cards!

Make it trickier: Use three-digit numbers, such as 142, 253 and 361, and subtract a one-digit number.

3. The Countdown Challenge 

You will need: Paper and a pencil.

How to play:

 1. Choose a starting number, such as 154.
 2. Take turns choosing a number to subtract: 6, 8, 9, 17 or 28.
 3. Work out the answer together before moving to the next turn.
 4. Keep subtracting until you reach zero or get as close as possible without going below it.

Example: Start at 154. Subtract 8 to get 146, then subtract 9 to get 137.

4. Race Back Through 100 

You will need: A toy car or counter and a piece of paper.

How to play:

 1. Write 120 at one end of a paper road and 80 at the other.
 2. Choose a starting number between 100 and 120.
 3. Call out a subtraction, such as “Take away 7!”
 4. Your child works out the answer and moves their car to the new number.

Try these: (103-6), \(112-5), \(101-8) and \(125-9).

Make it trickier: Start at 305 and subtract a two-digit number, such as 17.