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 = ______
48 + 10 = ______
76 − 10 = ______
89 + 20 = ______
85 − 10 = ______
24 − 10 = ______
1 × 10 = ______
6 × 10 = ______
41 + 20 = ______
46 + 20 = ______
39 − 10 = ______
47 − 10 = ______
83 + 10 = ______
37 − 10 = ______
83 + 20 = ______
7 × 10 = ______
11 + 10 = ______
74 − 10 = ______
63 + 10 = ______
46 + 10 = ______
