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
75 + 10 = ______
80 + 20 = ______
36 + 20 = ______
86 + 20 = ______
3 × 10 = ______
76 − 10 = ______
30 + 20 = ______
62 − 10 = ______
6 × 10 = ______
4 × 10 = ______
38 + 10 = ______
62 + 10 = ______
65 + 20 = ______
65 − 10 = ______
75 − 10 = ______
37 − 10 = ______
33 + 10 = ______
74 + 20 = ______
22 + 20 = ______
1 × 10 = ______
