Mathematics

Fill in the missing numbers.

35,40,45,50, —,—,65,—,—.

90,80,—,60,—,—,—,20,—.

70,—,74,—,—,80,—, —.

55,—,—,40, —,—,25,—.

80,—,—,74,—,72,—,68,—.

Work out.

2

+ 4

7

=

• 13

• 15

• 12

9+7+3=—

• 17

• 19

• 15

5

+ 7

1

=

• 14

• 12

• 13

6+3+5= —

• 14

• 15

• 8

4+2+7=—

• 13

• 9

• 6