41 + 30 =

(a)  

44 + 19 =

(a)  

72 + 19 =

(a)  

62 + 38 =

(a)  

Fill in the missing numbers.

41, (a)   , 43, 44, 45, 46, 47

Fill in the missing numbers.

20, 30, 40, 50, (a)   , 70

Fill in the missing numbers.

37, 39, 41, 43, (a)   , 47, 49

There are 11 basketballs and 8 soccer balls on the field.

How many balls are there on the field altogether?

(a)  

Caili has 12 stickers. David has 6 more stickers than Caili. How many stickers does David have?

(a)  

7 + 7 + 7 =

(a)  

6 + 3 + 4 =

(a)  

9 + 4 + 5 + 3 =

(a)  

7 + 5 + 3 + 2 + 6

(a)  

Frank's score for the test 2 is 8 marks less than his score for Test 1.

His score for Test 3 is 15 marks less than his score for Test 2.

If he gets 65 marks for Test 3. How many marks does he get for Test 1?

(a)