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
63 + 20 = ______
85 + 20 = ______
49 + 20 = ______
16 + 20 = ______
3 × 10 = ______
37 + 20 = ______
27 + 10 = ______
8 × 10 = ______
74 + 20 = ______
35 − 10 = ______
5 × 10 = ______
29 + 20 = ______
95 − 10 = ______
66 − 10 = ______
58 + 10 = ______
63 − 10 = ______
13 + 10 = ______
88 − 10 = ______
1 × 10 = ______
72 + 10 = ______
