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
52 − 10 = ______
3 × 10 = ______
47 + 10 = ______
63 − 10 = ______
62 − 10 = ______
48 − 10 = ______
5 × 10 = ______
38 − 10 = ______
27 + 20 = ______
19 + 10 = ______
22 − 10 = ______
36 + 10 = ______
28 + 20 = ______
84 + 20 = ______
54 − 10 = ______
4 × 10 = ______
94 − 10 = ______
87 + 20 = ______
77 + 10 = ______
9 × 10 = ______
