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
6 × 10 = ______
27 − 10 = ______
22 + 20 = ______
25 − 10 = ______
62 − 10 = ______
1 × 10 = ______
9 × 10 = ______
73 − 10 = ______
47 + 10 = ______
18 + 20 = ______
87 + 10 = ______
85 + 20 = ______
60 + 20 = ______
80 + 20 = ______
81 + 20 = ______
3 × 10 = ______
26 + 20 = ______
41 + 10 = ______
23 + 20 = ______
30 − 10 = ______
