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
9 × 10 = ______
34 − 10 = ______
3 × 10 = ______
48 + 20 = ______
47 + 10 = ______
78 + 20 = ______
51 − 10 = ______
8 × 10 = ______
81 − 10 = ______
59 + 10 = ______
30 + 10 = ______
93 − 10 = ______
60 − 10 = ______
83 + 20 = ______
1 × 10 = ______
40 + 10 = ______
41 + 10 = ______
26 + 10 = ______
71 + 10 = ______
11 + 10 = ______
