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
11 + 20 = ______
64 + 10 = ______
65 + 20 = ______
8 × 10 = ______
29 + 10 = ______
9 × 10 = ______
6 × 10 = ______
71 − 10 = ______
53 + 20 = ______
4 × 10 = ______
33 + 20 = ______
52 − 10 = ______
49 − 10 = ______
59 + 20 = ______
49 + 10 = ______
46 + 10 = ______
66 + 20 = ______
56 − 10 = ______
45 − 10 = ______
64 − 10 = ______
