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
35 + 10 = ______
7 × 10 = ______
64 − 10 = ______
4 × 10 = ______
44 + 10 = ______
12 + 20 = ______
14 + 10 = ______
51 − 10 = ______
26 + 10 = ______
40 + 20 = ______
15 + 20 = ______
68 + 10 = ______
17 + 20 = ______
75 − 10 = ______
6 × 10 = ______
78 + 20 = ______
9 × 10 = ______
27 − 10 = ______
31 + 20 = ______
95 − 10 = ______
