Subtractors - Term One
What to do when you have finished these?
Spend 5 minutes in Xtra Maths
Maths Whizz
STRATEGY
KNOWLEDGE
Week 9
What numbers are 100 more and one hundred less than these?
1. 623
2. 1845
3. 7345
4. 843
5. 8324
How many hundreds and tens are in these numbers?
6. 565
7. 7342
8. 861
9. 3987
10.912
Week 8
What numbers are 100 more and ten less than these?
1. 745
2. 3421
3. 1256
4. 561
5. 1176
How many hundreds and tens are in these numbers?
6. 343
7. 3475
8. 496
9. 269
10.2341
Subtractors are working in the Early Additive Stage and aiming towards the Advanced Additive Strategy Level.
We are working on solving addition and subtraction problems by using mutliple strategies such as:
Jumping the Number Line
Adding the ones and tens seperately when appropriate
Reversing problems and then using an appropriate method
Adjusting one number to the nearest hundred
We are learning how many tens, hundreds, thousands there are in numbers over 1000.
We are learning how to solve Multiplication problems using multiple strategies such as:
Splitting Factors 28 x 7 = (20 x 7) + (8 x 7)
Rounding and Compensating 5 x 68 = (5 x 70) - (5 x 2)
Proportional Adjustment 3 x 27 = 9 x 9