Addition strategies Maths Games For Year 2 (age 6-7)
Those children who do well at maths know the best strategies to use when calculating. These activities give unlimited practice on a variety of strategies that children can use to add, ‘in their heads’. Soon they will be working out answers in no time at all!
Know addition can be done in any order
A key concept is to understand that addition can be done in any order. So 6 + 3 is the same as 3 + 6.
Look for pairs of numbers that make 10
Recognising pairs of numbers that total 10 makes mental addition much easier.
Repeat Calculations in a Different Order
Knowing that addition can be done in any order helps enormously when mentally adding 3 or more numbers.
Add 11 to a 2 Digit Number
Adding 10 and then adding 1 is the easiest way of adding 11 to a 2-digit number.
Add 19 to a 2 Digit Number
Adding 19 is a little bit harder, but by adding 20 and subtracting 1 it becomes much easier.
Add 21 to a 2 Digit Number
Add 21 in two steps: add 20 and then add 1, or you could add 1 and then add 20, which is easier will depend on the numbers.
Find a Third Number To Make 100 Using a Number Line
Several ways this can be tackled. Try adding the two numbers and then counting on in tens to 100. Use the number line to help.
Find Two Numbers to Make 100 Using a Number Line
Find two numbers to make a total of 100. Lots of different correct answers are possible for this activity. Subtract the first number from 100 and then choose two numbers that make this answer.
Numbers To Make 20 With a Number Line
Find two more numbers that will make the total 20. use the number line to help.
Find The Missing Number Using a Number Line
Find the missing numbers can be worked out in several ways. One good way is to add the first two numbers and then count on to the total given. Or you could start with the total and subtract each number in turn.
Shopping for 3 Items
Use all the strategies learned to make finding the total for 3 items of shopping.
Add near doubles
Try doubling the smaller number and then adding one. Great if you know your doubles!
