Addition and subtraction

Lola bought a balloon at the circus using six coins. What could Lola have paid for the balloon?

Put operations signs between the numbers 3, 4, 5 and 6. What answers can you make?

Zias have 3 legs and Zepts have 7 legs. If there were 52 legs, how many of each were there?

Abundant numbers are less than the sum of their factors (excluding themselves). Can you find some?

Can you discover the value of the circle in each problem?

Can you put the numbers 1 to 8 into the circles so that the four calculations are correct?

A Deca Tree has 10 trunks, and on each trunk are 10 branches, and on each branch are 10 twigs...

Can you find out where all the numbers on this clock face are using the ten statements?

These rows of children are holding cards with numbers on them. Can you work out the missing numbers?

Can you add or subtract the two numbers on the spinners to complete a row of three?