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
49 + 10 = ______
66 + 10 = ______
73 + 20 = ______
7 × 10 = ______
81 + 20 = ______
34 + 10 = ______
59 + 20 = ______
6 × 10 = ______
1 × 10 = ______
64 + 10 = ______
30 − 10 = ______
36 − 10 = ______
47 − 10 = ______
3 × 10 = ______
5 × 10 = ______
62 − 10 = ______
63 + 20 = ______
68 + 10 = ______
98 − 10 = ______
62 + 20 = ______
