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 + 20 = ______
9 × 10 = ______
55 + 20 = ______
27 − 10 = ______
6 × 10 = ______
80 + 10 = ______
5 × 10 = ______
3 × 10 = ______
2 × 10 = ______
58 + 10 = ______
94 − 10 = ______
7 × 10 = ______
85 − 10 = ______
63 − 10 = ______
55 + 10 = ______
52 + 10 = ______
73 + 10 = ______
80 + 20 = ______
40 + 10 = ______
73 + 20 = ______
