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
2 × 10 = ______
63 + 10 = ______
95 − 10 = ______
64 + 20 = ______
40 + 10 = ______
60 + 20 = ______
6 × 10 = ______
96 − 10 = ______
3 × 10 = ______
45 + 20 = ______
13 + 10 = ______
69 + 20 = ______
91 − 10 = ______
69 − 10 = ______
9 × 10 = ______
21 − 10 = ______
8 × 10 = ______
4 × 10 = ______
93 − 10 = ______
48 + 20 = ______
