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
4 × 10 = ______
80 − 10 = ______
5 × 10 = ______
15 + 10 = ______
3 × 10 = ______
78 + 20 = ______
60 + 10 = ______
59 − 10 = ______
22 + 20 = ______
52 + 10 = ______
53 + 10 = ______
14 + 20 = ______
38 + 10 = ______
8 × 10 = ______
9 × 10 = ______
83 + 10 = ______
33 − 10 = ______
85 + 20 = ______
62 + 20 = ______
68 − 10 = ______
