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
76 + 20 = ______
5 × 10 = ______
20 + 10 = ______
8 × 10 = ______
67 + 20 = ______
22 + 10 = ______
65 + 20 = ______
52 + 20 = ______
47 − 10 = ______
33 + 20 = ______
57 − 10 = ______
46 + 10 = ______
81 − 10 = ______
46 − 10 = ______
73 − 10 = ______
75 − 10 = ______
16 + 10 = ______
42 + 10 = ______
87 + 20 = ______
28 − 10 = ______
