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 = ______
26 + 20 = ______
18 + 10 = ______
66 + 10 = ______
3 × 10 = ______
91 − 10 = ______
56 + 20 = ______
90 − 10 = ______
38 − 10 = ______
26 + 10 = ______
40 + 20 = ______
23 − 10 = ______
23 + 10 = ______
52 − 10 = ______
5 × 10 = ______
96 − 10 = ______
74 + 10 = ______
22 + 20 = ______
12 + 10 = ______
61 − 10 = ______
