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
3 × 10 = ______
80 + 10 = ______
9 × 10 = ______
22 − 10 = ______
24 − 10 = ______
1 × 10 = ______
29 − 10 = ______
28 + 20 = ______
81 + 20 = ______
85 − 10 = ______
48 + 20 = ______
12 + 20 = ______
71 − 10 = ______
27 + 10 = ______
58 + 20 = ______
8 × 10 = ______
5 × 10 = ______
55 − 10 = ______
67 + 10 = ______
4 × 10 = ______
