For the homework tonight students need to answer the questions, show me their mental math strategies for addition. (Using doubles and making 10)They each copied down the sentence that will help them explain their work.Example: 4 + 5 (Using doubles) Je sais que 4 + 4 = 8 alors, 4 + 5 = 9. (I know that 4 + 4 = 8, so 4 + 5 must be 9.) 9 + 3 (Using make 10)Je sais que  9 + 1 = 10  alors,  9 + 3 = 12.