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
64 − 10 = ______
25 − 10 = ______
30 + 20 = ______
72 − 10 = ______
6 × 10 = ______
75 + 10 = ______
9 × 10 = ______
2 × 10 = ______
89 + 20 = ______
73 − 10 = ______
8 × 10 = ______
57 + 10 = ______
57 + 20 = ______
53 + 20 = ______
4 × 10 = ______
48 + 20 = ______
84 + 20 = ______
37 − 10 = ______
89 − 10 = ______
62 − 10 = ______
