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
56 − 10 = ______
5 × 10 = ______
56 + 20 = ______
12 + 10 = ______
36 + 20 = ______
39 + 10 = ______
76 − 10 = ______
29 + 20 = ______
62 − 10 = ______
3 × 10 = ______
43 − 10 = ______
67 + 20 = ______
40 + 10 = ______
51 − 10 = ______
33 − 10 = ______
47 + 10 = ______
98 − 10 = ______
26 + 20 = ______
75 + 10 = ______
2 × 10 = ______
