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Number |
I’ll prove |
5, 3, 1 |
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Round to the nearest 10, 100, 1000, tenth and hundredth |
The nearest 10 to 5 is 10. The nearest 100 to 51 is 100. The nearest 1000 to 2334 is 2000.
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5 |
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Add 2-digit numbers to two digit numbers mentally |
29+23 20+20=40 9+3=12 |
3 |
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Subtract two digit numbers from two digit or three digit numbers mentally |
103-76 76...80=4 80...100=20 100...103=3 3+20+4=27 |
3 |
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Find the product of two numbers |
1x1=1 |
5 |
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Multiply and divide by 100 |
5x100=500 500/100=5 |
5 |
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Multiply and divide by 1000 |
5x1000=5000 5000/1000=5 |
5 |
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Multiply by 50 |
50x4=200 |
5 |
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Multiply by 200 |
5x200=1000 |
5 |
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Multiply by 5 |
5x5=25 |
5 |
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Multiply 2-digit numbers by 2-digit numbers using the grid method |
56x34= (estimate 50x30=1500) x 50 6 180 30 1500
+ + 4 200 24 |
5 |
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Multiply 3-digit numbers by 3-digit numbers using the grid method |
103x134= (estimate 100x130= 13,000 ) x 100 3 390 130 13,000 + +
4 400 12
13,802 |
5 |
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Multiply decimal numbers by decimal numbers using the grid method |
1.5x2.3= 1 0.5
2 2 1
0.3 0.3 0.15
3.45 |
5 |
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Find a percentage of a number |
50% of 12= 6 |
3 |
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Finding a fraction of a number |
1/2 of 12= 6 |
3 |
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Know simple equivalent fractions, percentages and decimals |
1/3 of 12=4 50%of 100=50 0.5 of 12=6 |
3 |
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Change a fraction into decimal using a calculator |
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3 |
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Change a fraction into a percentage using a calculator |
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3 |
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Divide showing remainders as fractions eg 41/10=4 and 1/10 |
51/10=5 and 1/10 |
3 |
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Find the square of a number |
The sqaure route of 16 = 4 |
3 |
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Find the cube of a number |
The cube of 3 is 27 | 3 |
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Find out whether a number is prime or not by working out how many factors (friends) it has. |
I was on holiday the week we learnt this. |
5 |
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Find the mean of a set of numbers |
1,2,3,4,5,6,7= 4 |
5 |
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Find the median of a set of numbers |
2,4,6,8,10 = 6 |
5 |
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Find the mode of a set of numbers |
I dont know this one. |
1 |
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Convert ml to l and vice versa |
1500 ml = 1.5 l. 2.5 l = 2500 ml |
3 |
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Convert m to km and vice versa |
2 miles = 3.2 km 2 km =1.24 m |
3 |
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Convert m to cm and vice versa |
3.2 m = 320 cm 240cm = 2.4 m |
3 |
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Convert mm to cm and m and vice versa |
300mm = 30cm = 0.3 m
1.6 m = 160cm = 1600mm
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3 |
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Identify different triangles |
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3 |
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Identify different quadrilaterals |
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3 |
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Identify different polygons |
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3 |
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Describe acute, obtuse and reflex angles |
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3 |
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Describe 2-D shapes using words like parallel, adjacent, opposite |
with 90 degree angles.
A rectangle has 4 parallel sides of 2 different lengths, with 90 degree angles. |
3 |
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Calculate the area of squares and rectangles |
A sqaure with 10 cm sides has an a area of 100 cm2.
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5 |
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Calculate the area of simple compound shapes that be split into rectangles |
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3 |
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Recognise where a shape will be after a rotation through 90 degrees around one of it vertices- using tracing paper |
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3 |
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Recognise where a shape will be after being reflected over the x or y axis- using tracing paper |
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3 |
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Identify 3-D shapes and describe them in terms of sides, edges and vertices |
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3 |
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Put your own here: |
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