Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
29 − 10 = ______
28 + 20 = ______
1 × 10 = ______
60 − 10 = ______
7 × 10 = ______
64 − 10 = ______
41 − 10 = ______
27 − 10 = ______
89 + 10 = ______
37 + 10 = ______
45 − 10 = ______
2 × 10 = ______
9 × 10 = ______
8 × 10 = ______
21 + 10 = ______
23 + 10 = ______
5 × 10 = ______
6 × 10 = ______
16 + 20 = ______
33 − 10 = ______
