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
66 − 10 = ______
41 − 10 = ______
8 × 10 = ______
45 + 10 = ______
55 + 20 = ______
61 − 10 = ______
36 + 10 = ______
9 × 10 = ______
4 × 10 = ______
19 + 20 = ______
63 + 20 = ______
68 + 20 = ______
36 + 20 = ______
89 + 20 = ______
53 + 10 = ______
63 + 10 = ______
5 × 10 = ______
66 + 20 = ______
1 × 10 = ______
94 − 10 = ______
