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
35 + 20 = ______
85 − 10 = ______
6 × 10 = ______
32 − 10 = ______
29 + 20 = ______
22 + 20 = ______
12 + 20 = ______
1 × 10 = ______
5 × 10 = ______
31 + 10 = ______
50 − 10 = ______
85 + 10 = ______
77 − 10 = ______
7 × 10 = ______
40 − 10 = ______
8 × 10 = ______
27 − 10 = ______
78 − 10 = ______
32 + 10 = ______
90 − 10 = ______
