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
84 − 10 = ______
18 + 10 = ______
5 × 10 = ______
4 × 10 = ______
34 + 20 = ______
8 × 10 = ______
3 × 10 = ______
34 − 10 = ______
76 + 10 = ______
47 + 10 = ______
1 × 10 = ______
71 − 10 = ______
96 − 10 = ______
39 − 10 = ______
17 + 20 = ______
83 − 10 = ______
80 + 10 = ______
86 + 10 = ______
80 − 10 = ______
6 × 10 = ______
