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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Alphabet Blocks

C=6

D=10

E=15

F=21

G=28

H=36

I=45

J=55

K=66

L=78

M=91

N=105

O=120

P=136

Q=153

R=171

S=190

T=210

U=231

V=253

W=276

X=300

Y=325

Z=351

## You may also like

### Prompt Cards

### Consecutive Numbers

### Exploring Wild & Wonderful Number Patterns

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

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Age 5 to 11

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Thomas from Beechwood Park School didn't stop at the blocks with J on them:

C=6

D=10

E=15

F=21

G=28

H=36

I=45

J=55

K=66

L=78

M=91

N=105

O=120

P=136

Q=153

R=171

S=190

T=210

U=231

V=253

W=276

X=300

Y=325

Z=351

Chloe and Georgia from Moorgate CP School, and Matt from St Andrew's School also calculated carefully.

Class 5 from Spring Grove Primary School in Hounslow told us:

These numbers are called triangle numbers because you would be able to arrange the number of blocks into a triangle formation. It would also work if they were counters as well.

That's right! Thank you.

These two group activities use mathematical reasoning - one is numerical, one geometric.

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.