Addition and subtraction

15 + 5= ________________

• Twelve

• Twenty

• Twenty one

11 - 6= ________________

• Five

• Four

• Six

17 + 2= __________________

• Nine

• Eighteen

• Nineteen

20 - 10= _______________

• Nine

• Eleven

• Ten

2 x 3= ______________

• Six

• Seven

• Eight

4 x 3= _________________

• Twelve

• Twenty

• Forteen

Eleven + seven= ________________

• Seventeen

• Nineteen

• Eighteen

15 - 3= _____________________

• Twelve

• Twenty

• Two

5 x 3= _______________

• Fifteen

• Sixteen

• Fourteen

Five + three= ________________

• Eight

• Seven

• Nine