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
3 × 10 = ______
4 × 10 = ______
11 + 20 = ______
66 − 10 = ______
5 × 10 = ______
66 + 10 = ______
68 + 10 = ______
25 − 10 = ______
42 + 10 = ______
15 + 10 = ______
69 + 10 = ______
42 + 20 = ______
65 + 20 = ______
63 − 10 = ______
86 − 10 = ______
84 + 20 = ______
54 − 10 = ______
83 − 10 = ______
64 + 10 = ______
37 − 10 = ______
