Wet homework

This task is about filling in missing numbers or signs to make number sentences true.

Peter spilt water on his maths homework. Help him fix it up by finishing each equation below.

a) Write in the missing number on each drop of water.
 
i)
 
 + 6 = 6 ii)
× 9 = 9
iii)
11  + = 11
 iv)
12 × = 12
 
b) Write in the missing sign (+ or ×) on each drop of water.
 
i)
 
7  0 = 7
 
 ii)
5  1 = 5
 
iii)
1   10 = 10
 iv)
0   3 = 3