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
5 × 10 = ______
85 − 10 = ______
32 + 20 = ______
64 + 20 = ______
32 − 10 = ______
79 + 10 = ______
6 × 10 = ______
84 − 10 = ______
33 + 20 = ______
9 × 10 = ______
65 + 20 = ______
83 + 20 = ______
53 − 10 = ______
30 − 10 = ______
32 + 10 = ______
26 + 20 = ______
58 − 10 = ______
92 − 10 = ______
34 − 10 = ______
40 + 20 = ______
