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
5 × 10 = ______
35 + 10 = ______
37 + 10 = ______
84 − 10 = ______
44 + 10 = ______
76 + 20 = ______
50 + 20 = ______
80 + 10 = ______
56 − 10 = ______
9 × 10 = ______
69 − 10 = ______
4 × 10 = ______
89 + 20 = ______
3 × 10 = ______
21 + 20 = ______
37 − 10 = ______
59 + 10 = ______
33 − 10 = ______
63 − 10 = ______
46 − 10 = ______
