6. multiplying 2 to 4-digit numbers by multiplies of 10

il y a 10 ans 3710 Vues

5. multiplying 2 to 4 digit numbers by 1-to 2-digit

il y a 10 ans 6879 Vues

4. solving word problems mentally

il y a 10 ans 2208 Vues

3. subtracting mentally 2 digit numbers without regrouping

il y a 10 ans 5835 Vues

2. estimating differences

il y a 10 ans 2440 Vues

1. subtracting numbers without regrouping

il y a 10 ans 30750 Vues

Tag question rules

il y a 10 ans 2631 Vues