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
14 + 10 = ______
64 + 20 = ______
5 × 10 = ______
29 + 20 = ______
9 × 10 = ______
86 − 10 = ______
7 × 10 = ______
56 + 10 = ______
43 + 20 = ______
41 + 20 = ______
98 − 10 = ______
24 − 10 = ______
6 × 10 = ______
37 + 10 = ______
90 − 10 = ______
45 − 10 = ______
61 − 10 = ______
43 + 10 = ______
37 + 20 = ______
23 − 10 = ______
