toán 2

12 cm + 5 cm = ?

• 18 cm

• 17 cm

• 17

Answer explanation

8 + 9 + 5 = ?

• 17

• 22

• 20

Answer explanation

9 + 9 - 3 = ?

• 18

• 17

• 15

Answer explanation

7 + 8 = ?

• 15

• 14

• 13

Answer explanation

9 + 4 = ?

• 12

• 13

• 14

Answer explanation

6 + 8 = ?

• 13

• 14

• 15

Answer explanation

6 dm + 6 dm + 5 dm = ?

• 14 dm

• 15 dm

• 17 dm

Answer explanation

90 cm = ......dm

• 9

• 90

• 900

Answer explanation

50 dm = ......cm

• 5

• 50

• 500

Answer explanation

300 cm =......dm

• 3

• 30

• 300

Answer explanation