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
25 − 10 = ______
33 + 20 = ______
7 × 10 = ______
75 − 10 = ______
17 + 10 = ______
9 × 10 = ______
4 × 10 = ______
35 + 10 = ______
44 − 10 = ______
46 + 10 = ______
3 × 10 = ______
61 + 20 = ______
63 − 10 = ______
66 − 10 = ______
6 × 10 = ______
67 + 20 = ______
22 + 10 = ______
8 × 10 = ______
18 + 20 = ______
26 + 10 = ______
