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
37 + 10 = ______
5 × 10 = ______
6 × 10 = ______
55 + 20 = ______
65 + 20 = ______
59 + 10 = ______
78 − 10 = ______
20 + 20 = ______
87 + 10 = ______
53 + 20 = ______
15 + 20 = ______
51 + 10 = ______
38 − 10 = ______
50 − 10 = ______
39 − 10 = ______
9 × 10 = ______
4 × 10 = ______
34 − 10 = ______
84 + 20 = ______
85 − 10 = ______
