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
77 − 10 = ______
22 − 10 = ______
62 + 20 = ______
32 + 20 = ______
72 + 10 = ______
4 × 10 = ______
97 − 10 = ______
60 − 10 = ______
2 × 10 = ______
25 + 10 = ______
6 × 10 = ______
41 + 20 = ______
52 − 10 = ______
56 + 20 = ______
3 × 10 = ______
19 + 20 = ______
39 + 10 = ______
58 + 10 = ______
78 − 10 = ______
48 − 10 = ______
