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
5 × 10 = ______
26 + 20 = ______
28 + 20 = ______
6 × 10 = ______
8 × 10 = ______
1 × 10 = ______
22 − 10 = ______
96 − 10 = ______
80 + 10 = ______
81 + 10 = ______
90 − 10 = ______
19 + 10 = ______
70 + 20 = ______
42 + 20 = ______
38 + 20 = ______
29 + 10 = ______
83 − 10 = ______
4 × 10 = ______
67 + 10 = ______
33 + 10 = ______
